Journal of Pathology and Translational Medicine

Dong Hae Chung

20 Articles

Primary carcinoid tumor in the external auditory canal: Dong Hae Chung, Gyu Cheol Han, Na Rae Kim; J Pathol Transl Med. 2020;54(2):184-187. Published online November 13, 2019; DOI: https://doi.org/10.4132/jptm.2019.11.07

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A 39-year-old man visited the department of otolaryngology due to an ongoing hearing disturbance that had lasted for 1 year. Temporal bone computed tomography revealed soft tissue density nearly obliterating the left external auditory canal (EAC). The mass was composed of sheets of round tumor cells containing moderate amounts of fine granular cytoplasm and salt and pepper chromatin. Neither mitosis nor necrosis was found. The Ki-67 proliferation index was less than 2%. Cells were positive for CD56 and synaptophysin but negative for chromogranin, cytokeratin (CK) 20, and CK7. Based on these findings, the tumor was diagnosed as a carcinoid tumor, well differentiated neuroendocrine carcinoma, grade 1 (G1) according to current World Health Organization (WHO) classification of head and neck tumors; and a neuroendocrine tumor, G1 according to neuroendocrine neoplasm (NEN)-2018 WHO standard classification. He remained free of local recurrence and metastasis after 20 months of follow up. To date, only six cases of primary NENs in the EAC have been reported. Metastatic tumor should be included in the differential diagnoses. Because of its rarity, the prognosis and treatment have not yet been clarified.

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First Report on a Rare Poorly Differentiated Neuroendocrine Tumour of the External Auditory Canal Involving Pinna
Akash Varshney, Amit Kumar Tyagi, Prashant Durgapal, Kajal Mahto, Akhilesh Chandra Yadav, Ankita Semwal
Indian Journal of Otolaryngology and Head & Neck Surgery.2025; 77(4): 1922. CrossRef
Incidental finding of a neuroendocrine neoplasm in a suspected ear canal exostosis
Alexander Wieck Fjaeldstad, Gerda Elisabeth Villadsen, Gitte Dam, Stephen Jacques Hamilton-Dutoit, Thomas Winther Frederiksen
Otolaryngology Case Reports.2022; 22: 100394. CrossRef
68Ga-DOTATATE Uptake in Well-Differentiated Neuroendocrine Tumor of the External Auditory Canal
Özge Erol Fenercioğlu, Ediz Beyhan, Rahime Şahin, Mehmet Can Baloğlu, Tevfik Fikret Çermik
Clinical Nuclear Medicine.2022; 47(8): e552. CrossRef

Contribution of cytologic examination to diagnosis of poorly differentiated thyroid carcinoma: Na Rae Kim, Jae Yeon Seok, Yoo Seung Chung, Joon Hyop Lee, Dong Hae Chung; J Pathol Transl Med. 2020;54(2):171-178. Published online February 5, 2020; DOI: https://doi.org/10.4132/jptm.2019.12.03

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Abstract PDF

Background
The cytologic diagnosis of poorly differentiated thyroid carcinoma (PDTC) is difficult because it lacks salient cytologic findings and shares cytologic features with more commonly encountered neoplasms. Due to diverse cytologic findings and paucicellularity of PDTC, standardization of cytologic diagnostic criteria is limited. The purpose of this study is to investigate and recognize diverse thyroid findings of fine needle aspiration (FNA) cytology and frozen smear cytology in diagnosis of this rare but aggressive carcinoma.
Methods
The present study included six cases of FNA cytology and frozen smears of histologically diagnosed PDTCs.
Results
PDTC showed cytologic overlap with well-differentiated thyroid carcinomas (WDTCs). Five of six cases showed dedifferentiation arising from well differentiated thyroid carcinomas. Only one de novo PDTC showed highly cellular smears composed of discohesive small cells, high nuclear/cytoplasmic (N/C) ratio, prominent micronucleoli, and irregular nuclei. Retrospectively reviewed, these findings are highly suspicious for PDTC. Cytologic findings of nuclear atypia, pleomorphism, and irregularity were frequently found, whereas scattered small cells were seen only in the de novo case.
Conclusions
Heterogeneous cytologic findings of PDTCs are shared with those of WDTCs and contribute to difficult preoperative cytologic diagnoses. Most PDTCs show dedifferentiation from WDTCs. Albeit rare, de novo PDTC should be considered with cytology showing discohesive small cells with high N/C ratio. This will enable precise diagnosis and prompt treatment of this aggressive malignancy

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Non-papillary thyroid carcinoma diagnoses in The Bethesda System for Reporting Thyroid Cytopathology categories V and VI: An institutional experience
Myunghee Kang, Na Rae Kim, Jae Yeon Seok
Annals of Diagnostic Pathology.2024; 71: 152263. CrossRef
Cytologic features of differentiated high‐grade thyroid carcinoma: A multi‐institutional study of 40 cases
Vanda F. Torous, Tikamporn Jitpasutham, Zubair Baloch, Richard L. Cantley, Darcy A. Kerr, Xiaoying Liu, Zahra Maleki, Ross Merkin, Vania Nosé, Liron Pantanowitz, Isabella Tondi Resta, Esther D. Rossi, William C. Faquin
Cancer Cytopathology.2024; 132(8): 525. CrossRef
An Unexpected Finding of Poorly Differentiated Thyroid Carcinoma in a Toxic Thyroid Nodule
Kimberly Yuang, Huda Al-Bahadili, Alan Chang
JCEM Case Reports.2023;[Epub] CrossRef
Revisiting the cytomorphological features of poorly differentiated thyroid carcinoma: a comparative analysis with indeterminate thyroid fine-needle aspiration samples
Yazeed Alwelaie, Ali Howaidi, Mohammed Tashkandi, Ahmad Almotairi, Hisham Saied, Moammar Muzzaffar, Doaa Alghamdi
Journal of the American Society of Cytopathology.2023; 12(5): 331. CrossRef
Characterization of the genomic alterations in poorly differentiated thyroid cancer
Yeeun Lee, SeongRyeol Moon, Jae Yeon Seok, Joon-Hyop Lee, Seungyoon Nam, Yoo Seung Chung
Scientific Reports.2023;[Epub] CrossRef

Comparison of papanicolaou smear and human papillomavirus (HPV) test as cervical screening tools: can we rely on HPV test alone as a screening method? An 11-year retrospective experience at a single institution: Myunghee Kang, Seung Yeon Ha, Hyun Yee Cho, Dong Hae Chung, Na Rae Kim, Jungsuk An, Sangho Lee, Jae Yeon Seok, Juhyeon Jeong; J Pathol Transl Med. 2020;54(1):112-118. Published online January 15, 2020; DOI: https://doi.org/10.4132/jptm.2019.11.29

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Background
The decrease in incidence of cervical dysplasia and carcinoma has not been as dramatic as expected with the development of improved research tools and test methods. The human papillomavirus (HPV) test alone has been suggested for screening in some countries. The National Cancer Screening Project in Korea has applied Papanicolaou smears (Pap smears) as the screening method for cervical dysplasia and carcinoma. We evaluated the value of Pap smear and HPV testing as diagnostic screening tools in a single institution.
Methods
Patients co-tested with HPV test and Pap smear simultaneously or within one month of each other were included in this study. Patients with only punch biopsy results were excluded because of sampling errors. A total of 999 cases were included, and the collected reports encompassed results of smear cytology, HPV subtypes, and histologic examinations.
Results
Sensitivity and specificity of detecting high-grade squamous intraepithelial lesion (HSIL) and squamous cell carcinoma (SCC) were higher for Pap smears than for HPV tests (sensitivity, 97.14%; specificity, 85.58% for Pap smears; sensitivity, 88.32%; specificity, 54.92% for HPV tests). HPV tests and Pap smears did not differ greatly in detection of low-grade squamous intraepithelial lesion (85.35% for HPV test, 80.31% for Pap smears). When atypical glandular cells were noted on Pap smears, the likelihood for histologic diagnosis of adenocarcinoma following Pap smear was higher than that of high-risk HPV test results (18.8 and 1.53, respectively).
Conclusions
Pap smears were more useful than HPV tests in the diagnosis of HSIL, SCC, and glandular lesions.

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ESPOCH Congresses: The Ecuadorian Journal of S.T.E.A.M..2023; 3(1): 139. CrossRef
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Comparison of Learning Transfer Using Simulation Problem-Based Learning and Demonstration: An Application of Papanicolaou Smear Nursing Education
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Investigating host-virus interaction mechanism and phylogenetic analysis of viral proteins involved in the pathogenesis
Ahmad Abu Turab Naqvi, Farah Anjum, Alaa Shafie, Sufian Badar, Abdelbaset Mohamed Elasbali, Dharmendra Kumar Yadav, Md. Imtaiyaz Hassan, Timir Tripathi
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Primary Necrobiotic Xanthogranulomatous Sialadenitis with Submandibular Gland Localization without Skin Involvement: Myunghee Kang, Na Rae Kim, Dong Hae Chung, Jae Yeon Seok, Dong Young Kim; J Pathol Transl Med. 2019;53(4):261-265. Published online January 16, 2019; DOI: https://doi.org/10.4132/jptm.2019.01.08

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Abstract PDF

Necrobiotic xanthogranulomatous reaction is a multiorgan, non-Langerhans cell histiocytosis with an unknown etiology. Occurrence in the salivary gland is extremely rare. We recently identified a case of necrobiotic xanthogranulomatous sialadenitis in a 73-year-old Korean woman who presented with a painless palpable lesion in the chin. There was no accompanying cutaneous lesion. Partial resection and subsequent wide excision with neck dissection were performed. Pathological examination showed a severe inflammatory lesion that included foamy macrophages centrally admixed with neutrophils, eosinophils, lymphocytes, plasma cells, and scattered giant cells, as well as necrobiosis. During the 12-month postoperative period, no grossly remarkable change in size was noted. Necrobiotic xanthogranulomatous inflammation may be preceded by or combined with hematologic malignancy. Although rare, clinicians and radiologists should be aware that an adhesive necrobiotic xanthogranuloma in the salivary gland may present with a mass-like lesion. Further evaluation for hematologic disease and close follow-up are needed when a pathologic diagnosis is made.

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Five Cases of Xanthogranulomatous Sialadenitis
Satoshi Kiyama, Hiroyuki Iuchi, Kotoko Ito, Kengo Nishimoto, Tsutomu Matsuzaki, Masaru Yamashita
Practica Oto-Rhino-Laryngologica.2022; 115(4): 315. CrossRef
Xanthogranulomatous change in a pleomorphic adenoma: An extremely rare variant/degenerative change. Is it fine needle aspiration induced?
Mukta Pujani, Dipti Sidam, Kanika Singh, Aparna Khandelwal, Khushbu Katarya
Diagnostic Cytopathology.2021;[Epub] CrossRef
A Case of Xanthogranulomatous Sialadenitis with Facial Palsy Mimicking Malignancy
Sang Hyun Kim, Sun Woo Kim, Sang Hyuk Lee
Korean Journal of Otorhinolaryngology-Head and Neck Surgery.2021; 64(6): 422. CrossRef
Xanthogranulomatous Sialadenitis, an Uncommon Reactive Change is Often Associated with Warthin’s Tumor
Lihong Bu, Hui Zhu, Emilian Racila, Sobia Khaja, David Hamlar, Faqian Li
Head and Neck Pathology.2020; 14(2): 525. CrossRef
A Case of Xanthogranulomatous Sialadenitis of the Sublingual Gland:A Review of Literature
Naoya KITAMURA, Seiji OHNO, Tetsuya YAMAMOTO
Journal of Japanese Society of Oral Medicine.2019; 25(1): 20. CrossRef

Frozen Cytology of Meningeal Malignant Solitary Fibrous Tumor/Hemangiopericytoma: Myunghee Kang, Na Rae Kim, Dong Hae Chung, Gie-Taek Yie; J Pathol Transl Med. 2019;53(3):192-197. Published online April 11, 2019; DOI: https://doi.org/10.4132/jptm.2019.03.20

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A 51-year-old woman presented with severe dizziness. The brain magnetic resonance image revealed a 5.5 cm multiloculated mass with a thick rim in the left temporal lobe. Cytological examination of frozen diagnosis of the mass showed hypercellular sheets of round and rhabdoid cells in a hemorrhagic background, and two mitotic figures were observed. Histologically, the excised dura-based mass consisted of predominantly round cells with small foci of rhabdoid tumor cells in a pseudoalveolar pattern in a hemorrhagic background, and the cells showed nuclear positivity for signal transducer and activator of transcription 6 as well as frequent mitosis. The mass was diagnosed as a grade 3 solitary fibrous tumor (SFT)/hemangiopericytoma (HPC). The cytological diagnosis of SFT/HPC is challenging because of the heterogeneous cytological findings, such as histological heterogeneity, and because there are no standardized cytological criteria for malignant SFT/HPC. Cytological findings, such as singly scattered small cells, hypercellularity, rare ropy collagen, and round and rhabdoid cells with pseudoalveolar pattern, may assist in the diagnosis of malignant SFT/HPC.

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Cytologic features of mesenchymal, melanocytic and haematolymphoid tumours of the central nervous system and metastases
Carmen Bárcena, José A. Jiménez‐Heffernan
Cytopathology.2024; 35(5): 590. CrossRef
A Hemangiopericytoma in the External Auditory Canal: A Rare Clinical Presentation and Management
Vaibhavi Patil, Prasad Deshmukh, Sagar S Gaurkar , Ayushi Ghosh Moulic, Jasleen Kaur
Cureus.2024;[Epub] CrossRef
Scoring system for intraoperative diagnosis of intracranial schwannoma by squash cytology
Hirotaka Fujita, Takuma Tajiri, Tomohisa Machida, Nozomi Nomura, Suguru Toguchi, Hitoshi Itoh, Shinichiro Hiraiwa, Tomoko Sugiyama, Chie Inomoto, Masaaki Imai, Shinri Oda, Masami Shimoda, Naoya Nakamura
Cytopathology.2022; 33(2): 196. CrossRef
Occurrence of a solitary fibrous tumor adjacent to the resection bed of a high-grade meningioma: A case report
Coby Cunningham, Rocco Dabecco, Justin Davanzo
Interdisciplinary Neurosurgery.2021; 25: 101277. CrossRef
A case of solitary fibrous tumor arising in the meninge
Saori NAKANISHI, Naoto KURODA, Toshiko TAKAI, Mari KOJIMA, Misato OONOGI
The Journal of the Japanese Society of Clinical Cytology.2021; 60(4): 224. CrossRef
Intraoperative frozen cytology of intraosseous cystic meningioma in the sphenoid bone
Na Rae Kim, Gie-Taek Yie
Journal of Pathology and Translational Medicine.2020; 54(6): 508. CrossRef

Squamous Cell Carcinoma of the Extrahepatic Common Hepatic Duct: Myunghee Kang, Na Rae Kim, Dong Hae Chung, Hyun Yee Cho, Yeon Ho Park; J Pathol Transl Med. 2019;53(2):112-118. Published online October 1, 2018; DOI: https://doi.org/10.4132/jptm.2018.09.03

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We report a rare case of hilar squamous cell carcinoma. A 62-year-old Korean woman complaining of nausea was referred to our hospital. Her biliary computed tomography revealed a 28 mm-sized protruding solid mass in the proximal common bile duct. The patient underwent left hemihepatectomy with S1 segmentectomy and segmental excision of the common bile duct. Microscopically, the tumor was a moderately differentiated squamous cell carcinoma of the extrahepatic bile duct, without any component of adenocarcinoma or metaplastic portion in the biliary epithelium. Immunohistochemically, the tumor was positive for cytokeratin (CK) 5/6, CK19, p40, and p63. Squamous cell carcinoma of the extrahepatic bile duct is rare. To date, only 24 cases of biliary squamous cell carcinomas have been reported. Here, we provide a clinicopathologic review of previously reported extrahepatic bile duct squamous cell carcinomas.

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Cholangiocarcinoma With Liver Metastasis in Squamous Cell Carcinoma Type: A Case Report
Jane Chiang
Journal of Diagnostic Medical Sonography.2024; 40(6): 609. CrossRef
A Rare Case of Squamous Cell Carcinoma of the Bile Duct
Julianna Tantum, Rachael Schneider, Stefanie Gallagher, Kyley Leroy, Jared Lander, Patricia Wong
ACG Case Reports Journal.2023; 10(8): e01119. CrossRef
Metastatic Anal Squamous Cell Carcinoma Presenting as an Indeterminate Biliary Stricture Diagnosed By Cholangioscopy
Ritu Nahar, Ian Holmes, Jeffrey Baliff, Austin Chiang, Thomas Kowalski
ACG Case Reports Journal.2022; 9(6): e00785. CrossRef
Temporal Changes in Cholangiocarcinoma Incidence and Mortality in the United States from 2001 to 2017
Milind Javle, Sunyoung Lee, Nilofer S Azad, Mitesh J Borad, Robin Kate Kelley, Smitha Sivaraman, Anna Teschemaker, Ishveen Chopra, Nora Janjan, Shreekant Parasuraman, Tanios S Bekaii-Saab
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PRIMARY SQUAMOUS CELL CARCINOMA OF THE COMMON BILE DUCT WITH LIVER METASTASES
Dhouha BACHA, Mohamed HAJRI, Wael FERJAOUI, Ghofrane TALBI, Lasaad GHARBI, Mohamed Taher KHALFALLAH, Sana ben SLAMA, Ahlem LAHMAR
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Carcinoma primario de células escamosas del conducto hepático común: a propósito de un caso
Ana Delgado Maroto, Andrés Barrientos Delgado, Marta Lázaro Sáez, Samia Hallouch Toutouh, Enrique Práxedes González
Gastroenterología y Hepatología.2019; 42(7): 436. CrossRef
Primary squamous cell carcinoma of the extrahepatic bile duct: A case report
Ana Delgado Maroto, Andrés Barrientos Delgado, Marta Lázaro Sáez, Samia Hallouch Toutouh, Enrique Práxedes González
Gastroenterología y Hepatología (English Edition).2019; 42(7): 436. CrossRef

Intraoperative Frozen Cytology of Central Nervous System Neoplasms: An Ancillary Tool for Frozen Diagnosis: Myunghee Kang, Dong Hae Chung, Na Rae Kim, Hyun Yee Cho, Seung Yeon Ha, Sangho Lee, Jungsuk An, Jae Yeon Seok, Gie-Taek Yie, Chan Jong Yoo, Sang Gu Lee, Eun Young Kim, Woo Kyung Kim, Seong Son, Sun Jin Sym, Dong Bok Shin, Hee Young Hwang, Eung Yeop Kim, Kyu Chan Lee; J Pathol Transl Med. 2019;53(2):104-111. Published online January 14, 2019; DOI: https://doi.org/10.4132/jptm.2018.11.10

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Abstract PDF

Background
Pathologic diagnosis of central nervous system (CNS) neoplasms is made by comparing light microscopic, immunohistochemical, and molecular cytogenetic findings with clinicoradiologic observations. Intraoperative frozen cytology smears can improve the diagnostic accuracy for CNS neoplasms. Here, we evaluate the diagnostic value of cytology in frozen diagnoses of CNS neoplasms.
Methods
Cases were selected from patients undergoing both frozen cytology and frozen sections. Diagnostic accuracy was evaluated.
Results
Four hundred and fifty-four cases were included in this retrospective single-center review study covering a span of 10 years. Five discrepant cases (1.1%) were found after excluding 53 deferred cases (31 cases of tentative diagnosis, 22 cases of inadequate frozen sampling). A total of 346 cases of complete concordance and 50 cases of partial concordance were classified as not discordant cases in the present study. Diagnostic accuracy of intraoperative frozen diagnosis was 87.2%, and the accuracy was 98.8% after excluding deferred cases. Discrepancies between frozen and permanent diagnoses (n = 5, 1.1%) were found in cases of nonrepresentative sampling (n = 2) and misinterpretation (n = 3). High concordance was observed more frequently in meningeal tumors (97/98, 99%), metastatic brain tumors (51/52, 98.1%), pituitary adenomas (86/89, 96.6%), schwannomas (45/47, 95.8%), high-grade astrocytic tumors (47/58, 81%), low grade astrocytic tumors (10/13, 76.9%), non-neoplastic lesions (23/36, 63.9%), in decreasing frequency.
Conclusions
Using intraoperative cytology and frozen sections of CNS tumors is a highly accurate diagnostic ancillary method, providing subtyping of CNS neoplasms, especially in frequently encountered entities.

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A Comparative Study of Squash Smear Cytology Diagnosis and Radiological Diagnosis with Histopathology in Central Nervous System Lesions
B N Kumarguru, G Santhipriya, S Kranthi Kumar, R Ramesh Kumar, A S Ramaswamy, P Janakiraman
Journal of Cytology.2022; 39(1): 1. CrossRef
Intraoperative squash cytology provides a qualitative intraoperative diagnosis for cases in which frozen section yields a diagnosis of equivocal brain tumour
Hirotaka Fujita, Takuma Tajiri, Tomohisa Machida, Nozomi Nomura, Suguru Toguchi, Hitoshi Itoh, Shinichiro Hiraiwa, Tomoko Sugiyama, Masaaki Imai, Shinri Oda, Masami Shimoda, Naoya Nakamura
Cytopathology.2020; 31(2): 106. CrossRef
Intraoperative frozen cytology of intraosseous cystic meningioma in the sphenoid bone
Na Rae Kim, Gie-Taek Yie
Journal of Pathology and Translational Medicine.2020; 54(6): 508. CrossRef
Use of 5-Aminolevulinic Acid for Confirmation of Lesional Biopsy Sample in Presumed High-Grade Glioma
Victoria L. Watson, Jeffrey W. Cozzens
World Neurosurgery.2019; 132: 21. CrossRef

Post-transplant Amputation Traumatic Neuroma of the Hilum and Extrahepatic Duct in a Liver Donor: Na Rae Kim, Hyun Yee Cho, Dong Hae Chung, Keon Kuk Kim, Jae Hee Cho, Seung Joon Choi; J Pathol Transl Med. 2018;52(3):191-194. Published online August 4, 2017; DOI: https://doi.org/10.4132/jptm.2017.01.20

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Sarang Thaker, Najib Nassani, Bartlomiej Lukasz Radzik, Christine Chan, Wadih Chacra, Sean Koppe, Grace Guzman, Adam E. Mikolajczyk
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Rare Case of Anal Canal Signet Ring Cell Carcinoma Associated with Perianal and Vulvar Pagetoid Spread: Na Rae Kim, Hyun Yee Cho, Jeong-Heum Baek, Juhyeon Jeong, Seung Yeon Ha, Jae Yeon Seok, Sung Won Park, Sun Jin Sym, Kyu Chan Lee, Dong Hae Chung; J Pathol Transl Med. 2016;50(3):231-237. Published online October 8, 2015; DOI: https://doi.org/10.4132/jptm.2015.08.08

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A 61-year-old woman was referred to surgery for incidentally found colonic polyps during a health examination. Physical examination revealed widespread eczematous skin lesion without pruritus in the perianal and vulvar area. Abdominopelvic computed tomography showed an approximately 4-cm-sized, soft tissue lesion in the right perianal area. Inguinal lymph node dissection and Mils’ operation extended to perianal and perivulvar skin was performed. Histologically, the anal canal lesion was composed of mucin-containing signet ring cells, which were similar to those found in Pagetoid skin lesions. It was diagnosed as an anal canal signet ring cell carcinoma (SRCC) with perianal and vulvar Pagetoid spread and bilateral inguinal lymph node metastasis. Anal canal SRCC is rare, and the current case is the third reported case in the English literature. Seven additional cases were retrieved from the world literature. Here, we describe this rare case of anal canal SRCC with perianal Pagetoid spread and provide a literature review.

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Primary Carcinomas of the Episiotomy Scar Site: A Systematic Literature Review
Andrea Palicelli, Federica Torricelli, Gabriele Tonni, Alessandra Bisagni, Eleonora Zanetti, Magda Zanelli, Venus Damaris Medina-Illueca, Beatrice Melli, Maurizio Zizzo, Andrea Morini, Maria Paola Bonasoni, Giacomo Santandrea, Giuseppe Broggi, Rosario Cal
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A Case of Prostatic Signet-Ring Cell-like Carcinoma with Pagetoid Spread and Intraductal Carcinoma and Long-Term Survival: PD-L1 and Mismatch Repair System Proteins (MMR) Immunohistochemical Evaluation with Systematic Literature Review
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Journal of Personalized Medicine.2023; 13(6): 1016. CrossRef
Anal canal adenocarcinoma with neuroendocrine features accompanying secondary extramammary Paget disease, successfully treated with modified FOLFOX6: a case report
Masamichi Yamaura, Takeshi Yamada, Rei Watanabe, Hitomi Kawai, Suguru Hirose, Hiroki Tajima, Masashi Sato, Yuichi Uchida, Daisuke Suganuma, Yoshiyuki Yamamoto, Toshikazu Moriwaki, Ichinosuke Hyodo
BMC Cancer.2018;[Epub] CrossRef
Solitary left axillary lymph node metastasis after curative resection of carcinoma at the colostomy site: a case report
Ken Imaizumi, Shigenori Homma, Tadashi Yoshida, Tatsushi Shimokuni, Hideyasu Sakihama, Norihiko Takahashi, Hideki Kawamura, Emi Takakuwa, Akinobu Taketomi
Surgical Case Reports.2016;[Epub] CrossRef

Morphologic Analysis of Cytomegalovirus Infected Cells in Bronchial Washing Cytology: Comparison of Liquid-Based Preparation and Conventional Smear: Jae Yeon Seok, Jungsuk An, Seung Yeon Ha, Dong Hae Chung, Sangho Lee, Hyunchul Kim; J Pathol Transl Med. 2016;50(2):147-154. Published online February 15, 2016; DOI: https://doi.org/10.4132/jptm.2015.12.25

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Background
The cytopathic effects of cytomegalovirus (CMV) infection have been well described since the virus was first reported; however, the morphology of CMV infection has not been clearly studied. We examined the difference in detailed cytologic findings in bronchial washing cytology between liquid-based and conventionally prepared smears. Methods: Bronchial washing cytology was processed using either the conventional preparation (CP) or liquid-based preparation (LBP). Sixty-nine cells with typical cytopathic effects of CMV infection were detected on CP slides and 18 cells on LBP slides. Using the image analyzer, area, circumference, major axis, and minor axis of the cytoplasm, nucleus, and intranuclear inclusion were measured in singly scattered CMV-infected cells, and histiocytes were used as a control. Results: The mean cytoplasmic area of CMV-infected cells was 1.47 times larger than that of histiocytes in CP and 2.92 times larger in LBP (p<.05). The mean nuclear area of CMV-infected cells was 2.61 times larger than that of histiocytes in CP and 4.25 times larger in LBP (p<.05). The nucleus to cytoplasm ratio and intranuclear inclusion to cytoplasm ratio of the mean area, circumference, major axis, and minor axis in CP were larger than those in LBP (p<.05). Conclusions: The sizes of cytoplasm, nucleus, and intranuclear inclusion were larger in LBP than in CP, indicating that CMV-infected cells are easily detectable in LBP. However, the nucleus-to-cytoplasm ratio was larger in CP, suggesting that differentiation from malignancy or regenerative atypia requires caution in CP.

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Tzy Harn Chua, Lavisha S Punjabi, Li Yan Khor
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Rebecca J. Baldassarri, Deepika Kumar, Stephen Baldassarri, Guoping Cai
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Comparison of Cytologic Characteristics between Adenoid Cystic Carcinoma and Adenoid Basal Carcinoma in the Uterine Cervix: Juhyeon Jeong, Seung Yeon Ha, Hyun Yee Cho, Dong Hae Chung, Jungsuk An; J Pathol Transl Med. 2015;49(5):396-402. Published online August 17, 2015; DOI: https://doi.org/10.4132/jptm.2015.07.08

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Abstract PDF

Background
Adenoid cystic carcinoma (ACC) and adenoid basal carcinoma (ABC) are rare in the uterine cervix. ACC is more aggressive than ABC, thus accurate differential diagnosis is important. In this study, we identified cytologic features useful in distinguishing these two tumors for diagnosis. Methods: Three cases of ACC and five cases of ABC were selected for this study. Cervicovaginal smear slides were reviewed retrospectively, and the area, circumference, major axis, and minor axis of nuclei were measured using an image analyzer. Results: ACC displayed three-dimensional clusters with a small acini pattern. ABC displayed peripheral palisading without an acini pattern. The nuclei of ACC were more irregular and angulated than those of ABC, and the former showed a coarsely granular chromatin pattern. The nucleic area, circumference, major axis, and minor axis were 18.556±8.665 µm², 23.320±11.412 µm, 5.664±1.537 µm, and 4.127±1.107 µm in ACC and 11.017±4.440 µm², 15.920±5.664 µm, 4.612±1.025 µm, and 3.088±0.762 µm in the cases of ABC. All measured values showed statistically significant difference (p < .001). Conclusions: Although the nuclei of both of these tumor types were oval shaped, inferred from the ratio of minor axis to major axis (0.728 in ACC and 0.669 in ABC), the area of nuclei was approximately 1.7 times larger in ACC than in ABC. Distinguishing nucleic features, including area, morphology, and chromatin pattern, may be helpful in making a correct diagnosis.

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Adenoid basal carcinoma of the uterine cervix
Anas Mohamed, Tesfalem Korga, Ahlam Ali, Javier Laurini
International Journal of Gynecological Cancer.2025; : 101873. CrossRef
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Tatsuya Kanuma, Keiko Kigure, Tosio Nishimura, Yuji Ibuki, Shigeru Tsuchida, Harumi Kamiyama, Misa Iijima, Kazuto Nakamura
The KITAKANTO Medical Journal.2016; 66(1): 11. CrossRef

Alveolar Rhabdomyosarcoma of the Lip in an Adult with Clear Cell Features: Jae Yeon Seok, Juhyeon Jeong, Young Woo Cheon, Hyun Yee Cho, Seung Yeon Ha, Dong Hae Chung; J Pathol Transl Med. 2015;49(1):81-84. Published online January 15, 2015; DOI: https://doi.org/10.4132/jptm.2014.06.03

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Cystic Brunner’s Gland Hamartoma in the Gastric Body: A Case Report: Dong Hae Chung, Na Rae Kim, Hyun Yee Cho, Yoon Jae Kim; Korean J Pathol. 2014;48(5):371-374. Published online October 27, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.5.371

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Jad Mhanna, Fadi F. Francis, Bassel Zein Sabatto, Ayman Tawil, Jana G. Hashash
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Bilateral Stafne Bone Cavity in the Anterior Mandible with Heterotopic Salivary Gland Tissue: A Case Report: Hyunchul Kim, Jae Yeon Seok, Sangho Lee, Jungsuk An, Na Rae Kim, Dong Hae Chung, Hyun Yee Cho, Seung Yeon Ha; Korean J Pathol. 2014;48(3):248-249. Published online June 26, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.3.248

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Uncommon and Rare Human Papillomavirus Genotypes Relating to Cervical Carcinomas: Na Rae Kim, Myunghee Kang, Soon Pyo Lee, Hyunchul Kim, Jungsuk An, Dong Hae Chung, Seung Yeon Ha, Hyun Yee Cho; Korean J Pathol. 2014;48(1):43-49. Published online February 25, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.1.43

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Abstract PDF

Background

Human papillomavirus (HPV) is an oncogenic virus in cervical cancer and most invasive carcinomas (ICs) are caused by HPV16 and 18. However, the roles and contributions of other uncommon and rare genotypes remain uncertain.

Methods

HPV genotypes were retrospectively assessed using an HPV DNA chip that can specify up to 32 HPV genotypes. We arbitrarily regarded genotypes accounting for less than 6% of the total as uncommon and rare genotypes.

Results

A total of 3,164 HPV-positive cases were enrolled. In groups 2A, 2B, 3, and unclassified HPV genotypes, 2.4% of cases with uncommon HPV genotypes (68, 26, 34, 53, 66, 69, 70, 73, 40, 42, 43, 44, 54, 55, 61, 62, 6, and 11) showed high grade squamous intraepithelial lesions and ICs. There were no HPV32- and 57-infected cases.

Conclusions

We found that the uncommon and rare HPV genotypes may provide incremental etiologic contributions in cervical carcinogenesis, especially HPV68, 70, and 53. Further studies on these uncommon and rare HPV genotypes will be of importance in establishing the significance of genotypes in different regions, especially in planning a strategy for further vaccine development as well as follow-up on the effectiveness of the currently used vaccines.

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Abstract PDF

A 36-year-old woman presented with erythematous confluent macules on her whole body with fever and chills associated with jaundice after 8 months of dapsone therapy. Her symptoms had developed progressively, and a physical examination revealed bilateral cervical lymphadenopathy and splenomegaly. Excisional biopsy of a cervical lymph node showed effacement of the normal architecture with atypical lymphoid hyperplasia and proliferation of high endothelial venules compatible with angioimmunoblastic T-cell lymphoma. However, it was assumed that the cervical lymphadenopathy was a clinical manifestation of a systemic hypersensitivity reaction because her clinical course was reminiscent of dapsone-induced hypersensitivity syndrome. A liver biopsy revealed drug-induced hepatitis with no evidence of lymphomatous involvement. Intravenous glucocorticoid was immediately initiated and her symptoms and clinical disease dramatically improved. The authors present an unusual case of cervical lymphadenopathy mimicking angioimmunoblastic T-cell lymphoma as an adverse reaction to dapsone.

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Author index