Journal of Pathology and Translational Medicine

Original Articles

Clinicopathological differences in radiation-induced organizing hematomas of the brain based on type of radiation treatment and primary lesions: Myung Sun Kim, Se Hoon Kim, Jong-Hee Chang, Mina Park, Yoon Jin Cha; J Pathol Transl Med. 2022;56(1):16-21. Published online October 15, 2021; DOI: https://doi.org/10.4132/jptm.2021.08.30

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Background
Radiation-induced organizing hematoma (RIOH) is a sporadic form of cavernous hemangioma (CH) that occurs after cerebral radiation. RIOH lesions are distinct histologically from de novo CH; however, detailed research on this subject is lacking. In the present study, the clinical and histological features of RIOHs were evaluated based on causative lesions.
Methods
The present study included 37 RIOHs confirmed by surgical excision from January 2009, to May 2020, in Yonsei Severance Hospital. All cases were divided into subgroups based on type of radiation treatment (gamma knife surgery [GKS], n = 24 vs. conventional radiation therapy [RT], n = 13) and pathology of the original lesion (arteriovenous malformation, n = 14; glioma, n = 12; metastasis, n = 4; other tumors, n = 7). The clinicopathological results were compared between the groups.
Results
Clinical data of multiplicity, latency, and size and wall thickness of the original tumors and RIOHs were analyzed. The GKS group showed shorter latency (5.85 ± 4.06 years vs. 11.15 ± 8.27 years, p = .046) and thicker tumor wall (693.7 ± 565.7 μm vs. 406.9 ± 519.7 μm, p = .049) than the conventional RT group. Significant difference was not found based on original pathology.
Conclusions
RIOH is more likely to occur earlier with thick tumor wall in subjects who underwent GKS than in patients who underwent conventional RT. These results indicate the clinical course of RIOH differs based on type of treatment and might help determine the duration of follow-up.

Citations

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End-stage ADPKD with a low-frequency PKD1 mosaic variant accelerated by chemoradiotherapy
Hiroaki Hanafusa, Hiroshi Yamaguchi, Naoya Morisada, Ming Juan YE, Riki Matsumoto, Hiroaki Nagase, Kandai Nozu
Human Genome Variation.2024;[Epub] CrossRef
Recapitulating the Key Advances in the Diagnosis and Prognosis of High-Grade Gliomas: Second Half of 2021 Update
Guido Frosina
International Journal of Molecular Sciences.2023; 24(7): 6375. CrossRef
Earlier Age at Surgery for Brain Cavernous Angioma-Related Epilepsy May Achieve Complete Seizure Freedom without Aid of Anti-Seizure Medication
Ayataka Fujimoto, Hideo Enoki, Keisuke Hatano, Keishiro Sato, Tohru Okanishi
Brain Sciences.2022; 12(3): 403. CrossRef

Adjunctive markers for classification and diagnosis of central nervous system tumors: results of a multi-center neuropathological survey in Korea: Yoon Jin Cha, Se Hoon Kim, Na Rae Kim; J Pathol Transl Med. 2020;54(2):165-170. Published online February 20, 2020; DOI: https://doi.org/10.4132/jptm.2020.02.04

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Abstract PDF Supplementary Material

Background
The revised 4th 2016 World Health Organization (WHO) classification of tumors of the central nervous system (CNS) classification has adopted integrated diagnosis encompassing the histology and molecular features of CNS tumors. We aimed to investigate the immunohistochemistry, molecular testing, and testing methods for diagnosis of CNS tumors in pathological labs of tertiary centers in Korea, and evaluate the adequacy of tests for proper diagnosis in daily practice.
Methods
A survey, composed of eight questions concerning molecular testing for diagnosis of CNS tumors, was sent to 10 neuropathologists working in tertiary centers in Korea.
Results
For diagnosis of astrocytic and oligodendroglial tumors, all 10 centers performed isocitrate dehydrogenase mutations testing and 1p/19q loss of heterozygosity. For glioneuronal tumors, immunohistochemistry (IHC) assays for synaptophysin (n = 9), CD34 (n = 7), BRAF(VE1) (n = 5) were used. For embryonal tumors, particularly in medulloblastoma, four respondents used IHC panel (growth factor receptor bound protein 2-associated protein 1, filamin A, and yes-associated protein 1) for molecular subclassification. Regarding meningioma, all respondents performed Ki-67 IHC and five performed telomerase reverse transcriptase promoter mutation.
Conclusions
Most tertiary centers made proper diagnosis in line with 2016 WHO classification. As classification of CNS tumors has evolved to be more complex and more ancillary tests are required, these should be performed considering the effect of necessity and justification.

Citations

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Exploring the role of epidermal growth factor receptor variant III in meningeal tumors
Rashmi Rana, Vaishnavi Rathi, Kirti Chauhan, Kriti Jain, Satnam Singh Chhabra, Rajesh Acharya, Samir Kumar Kalra, Anshul Gupta, Sunila Jain, Nirmal Kumar Ganguly, Dharmendra Kumar Yadav, Timir Tripathi
PLOS ONE.2021; 16(9): e0255133. CrossRef

Case Studies

Hyalinizing Trabecular Tumor of the Thyroid Gland, a Diagnostic Challenge in Fine-Needle Aspiration Cytology: Case Report: Ye-Young Rhee, Hong Kyu Jung, Se Hoon Kim, Soo Hee Kim; J Pathol Transl Med. 2018;52(4):252-256. Published online June 11, 2018; DOI: https://doi.org/10.4132/jptm.2018.04.28

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Abstract PDF

Hyalinizing trabecular tumor (HTT) is a rare thyroid tumor with low to minimal malignant potential. HTT is often misinterpreted as other thyroid tumors, including papillary thyroid carcinoma (PTC) and medullary thyroid carcinoma (MTC), on fine-needle aspiration (FNA) cytology, because of its overlapping cytologic features, such as nuclear grooves and intranulcear pseudoinclusions. Although cytopathologists cannot definitely conclude HTT by FNA cytology, suspicion of HTT is necessary to avoid misdiagnosing HTT as PTC or MTC and to avoid unnecessary aggressive treatment. Here, we report a case of HTT with novel cytologic features in CellPrep liquid based cytology that was diagnosed as suspicious for papillary carcinoma by FNA and finally diagnosed as HTT in the surgical specimen.

Citations

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Cytomorphological traits of fine-needle aspirates of hyalinizing trabecular tumor of the thyroid gland: A brief report
Fei Wang, Yufei Liu
Indian Journal of Pathology and Microbiology.2024; 67(1): 128. CrossRef
Total thyroidectomy can still remain the method of choice in some Bethesda III cases
Jindrich Lukas, Barbora Hintnausova, Vlasta Sykorova, Martin Syrucek, Marek Maly, Jaroslava Duskova
Biomedical Papers.2023; 167(1): 61. CrossRef
Diagnostic clues for hyalinizing trabecular tumor on fine needle aspiration cytology
Lone Nielsen, Ana María Colino Gallardo, Pablo Pérez Alonso, Luis Ortega Medina, Esthefanía Latorre García, Cristina Díaz del Arco, Reyes Bergillos Jiménez, Lorenzo Alarcón García, Marta Cruz Blanco, Jesús Vega González, Montserrat De la Torre Serrano, Ma
Cytojournal.2023; 20: 19. CrossRef
Clinical Characteristics of the Hyalinizing Trabecular Tumor
Byung-Chang Kim, Shin Jeong Pak, Jae Won Cho, Won Woong Kim, Yu-mi Lee, Tae-Yon Sung, Jung Hwan Baek, Ki-Wook Chung
Journal of Endocrine Surgery.2022; 22(4): 116. CrossRef
A Case of Multifocal Hyalinizing Trabecular Tumors of the Thyroid Gland
Suhwan Jeong, Hanaro Park
Journal of Clinical Otolaryngology Head and Neck Surgery.2021; 32(3): 308. CrossRef
The Diagnosis of Hyalinizing Trabecular Tumor: A Difficult and Controversial Thyroid Entity
Esther Diana Rossi, Mauro Papotti, William Faquin, Luigi Maria Larocca, Liron Pantanowitz
Head and Neck Pathology.2020; 14(3): 778. CrossRef
A large series of hyalinizing trabecular tumors: Cytomorphology and ancillary techniques on fine needle aspiration
Marco Dell’Aquila, Carmen Gravina, Alessandra Cocomazzi, Sara Capodimonti, Teresa Musarra, Stefania Sfregola, Vincenzo Fiorentino, Luca Revelli, Maurizio Martini, Guido Fadda, Liron Pantanowitz, Luigi Maria Larocca, Esther Diana Rossi
Cancer Cytopathology.2019; 127(6): 390. CrossRef
GLIS rearrangements in thyroid nodules: A key to preoperative diagnosis of hyalinizing trabecular tumor
Marina N. Nikiforova, Yuri E. Nikiforov, N. Paul Ohori
Cancer Cytopathology.2019; 127(9): 560. CrossRef

Merkel Cell Carcinoma Metastatic to Pleural Fluid: A Case Report: Ye-Young Rhee, Soo Hee Kim, Eun Kyung Kim, Se Hoon Kim; J Pathol Transl Med. 2018;52(3):206-209. Published online November 23, 2017; DOI: https://doi.org/10.4132/jptm.2017.11.10

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Abstract PDF

Merkel cell carcinoma (MCC) is a rare aggressive neuroendocrine carcinoma of the skin that shows locoregional or distant metastasis. Metastasis of MCC to body cavity effusion is extremely rare; only three cases have been reported so far. Metastatic MCC in effusion cytology shows small blue round cells with fine stippled chromatin like other small blue round cell tumors such as small cell lung carcinoma or lymphoma. The diagnosis of metastatic MCC can grant patients good chances at recently advanced therapeutic options. Here, we present a case of metastatic MCC to pleural effusion with characteristic single file-like pattern.

Citations

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Merkel cell carcinoma presenting as a malignant pleural effusion post‐COVID‐19 hospitalization: A case report and literature review
Joel Lanceta, Mesut Toprak, Oana C. Rosca
Diagnostic Cytopathology.2022;[Epub] CrossRef
Cytology coupled with immunocytochemistry identifies Merkel cell carcinoma: A rare intruder in the cerebrospinal fluid
Reetu Kundu, Brijdeep Singh, Pranab Dey
Cytopathology.2022; 33(4): 530. CrossRef
Derrame pleural por carcinoma de células de Merkel
María J. Soler-Sempere, María O. Alvárez-Fernández, Isabel Padilla-Navas, María Cabezas-Macián, Jose F. Sánchez-Hernández, Eduardo García-Pachón
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A rare case of pleural localisation of both metastatic Merkel cell carcinoma and chronic lymphocytic leukaemia
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Merkel cell carcinoma with pleural effusion
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Archivos de Bronconeumología (English Edition).2021; 57(11): 715. CrossRef

Liquid-Based Cytology of the Cerebrospinal Fluid in a Case of Cryptococcal Meningitis: Jiwoon Choi, Se Hoon Kim; J Pathol Transl Med. 2018;52(1):61-63. Published online October 26, 2017; DOI: https://doi.org/10.4132/jptm.2017.06.13

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Abstract PDF

Cryptococcus neoformans is the most common microorganism found in cerebrospinal fluid (CSF) cytology and causes life-threatening infections in immunocompromised hosts. Although its cytomorphologic features in conventional smear cytology have been well described, those in liquid-based cytology have rarely been. A 73-year-old woman with diffuse large B-cell lymphoma presented with mental confusion and a spiking fever. To rule out infectious conditions, CSF examination was performed. A cytology slide that was prepared using the ThinPrep method showed numerous spherical yeast-form organisms with diameters of 4–11 μm and thick capsules. Occasional asymmetrical, narrow-based budding but no true hyphae or pseudohyphae were observed. Gomori methenamine silver staining was positive. Cryptococcosis was confirmed in blood and CSF through the cryptococcal antigen test and culture. Liquid-based cytology allows for a clean background and additional slides for ancillary testing, facilitating the detection of microorganisms in CSF specimens, particularly when the number of organisms is small.

Citations

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Unraveling Capsule Biosynthesis and Signaling Networks in Cryptococcus neoformans
Eun-Ha Jang, Ji-Seok Kim, Seong-Ryong Yu, Yong-Sun Bahn, Teresa R. O’Meara
Microbiology Spectrum.2022;[Epub] CrossRef
Cerebrospinal fluid pleocytosis in immunocompromised patients: Can it be Cryptococcus
Ridhi Sood, Ruchita Tyagi, Pavneet Selhi, Harpreet Kaur, Neena Sood
Diagnostic Cytopathology.2020; 48(2): 164. CrossRef
Special Staining of the Liquid-Based Cytopathology Test in Bronchoalveolar Lavage Fluid for Diagnosis of Invasive Pulmonary Aspergillosis with Nonneutropenic Patients
Yue Hu, Lin Zheng, Deng Pan, Lei Shao, Xianfa Xu, Yiming Yu, Qidong Zhuang, Zaichun Deng, Zhongbo Chen
Canadian Respiratory Journal.2020; 2020: 1. CrossRef
Sensitivity of Cerebrospinal Fluid Cytology for the Diagnosis of Cryptococcal Infections
Kelsey E McHugh, Melanie Gersey, Daniel D Rhoads, Gary W Procop, Yaxia Zhang, Christine N Booth, Charles D Sturgis
American Journal of Clinical Pathology.2019; 151(2): 198. CrossRef
Cryptococcal Capsules in Cerebrospinal Fluid Visible on Hemocytometer
Zen Kobayashi, Yuriko Hirota, Shuzo Shintani
Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques.2018; 45(6): 700. CrossRef

A Rare Case of Aggressive Melanotic Schwannoma Occurred in Spinal Nerve of a 59-Year-Old Male: Sung-eun Choi, Yoon Jin Cha, Jisup Kim, Hyunseo Cha, Jayeong Seo, Sung-Uk Kuh, Sung-Jun Kim, Se Hoon Kim; J Pathol Transl Med. 2017;51(5):505-508. Published online April 4, 2017; DOI: https://doi.org/10.4132/jptm.2017.01.04

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Abstract PDF

Melanotic schwannoma (MS) is a rare variant of nerve sheath neoplasm that shows ultrastructural and immunophenotypical features of Schwann cells but also has cytoplasmic melanosomes and is reactive for melanocytic markers as well. Unlike conventional schwannoma, which is totally benign, MS has an unpredictable prognosis and is thought to have low-malignant potential. Herein, we present a rare case of recurrent MS in lumbar spine of a 59-year-old male.

Citations

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Case Report: Cutaneous melanocytic schwannoma with concomitant melanocytoma in a canine
Olwam H. Monakali, Nicolize O'Dell, Louise van der Weyden
Wellcome Open Research.2024; 8: 364. CrossRef
A Rare Case of Melanotic Schwannoma Occurred Intraosseous of Sacrum: A Literature Review
Xiaobo Yan, Keyi Wang, Nong Lin, Xin Huang, YanBiao Fu, Zhaoming Ye
Orthopaedic Surgery.2023; 15(2): 655. CrossRef
Sporadic spinal psammomatous malignant melanotic nerve sheath tumor: A case report and literature review
Giulio Bonomo, Alessandro Gans, Elio Mazzapicchi, Emanuele Rubiu, Paolo Alimonti, Marica Eoli, Rosina Paterra, Bianca Pollo, Guglielmo Iess, Francesco Restelli, Jacopo Falco, Francesco Acerbi, Marco Paolo Schiariti, Paolo Ferroli, Morgan Broggi
Frontiers in Oncology.2023;[Epub] CrossRef
Case Report: Cutaneous melanocytic schwannoma with concomitant melanocytoma in a canine
Olwam H. Monakali, Nicolize O'Dell, Louise van der Weyden
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Fine‐needle aspiration cytology of melanotic schwannoma in the submandibular gland
Yu‐Hua Huang, Ying‐Chou Lu, Hsuan‐Ying Huang, Chien‐Chin Chen
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Checkpoint inhibitors and radiotherapy in refractory malignant melanocytic schwannoma with Carney complex: first evidence of efficacy
Jyoti Bajpai, Akhil Kapoor, Rakesh Jalali, Mrinal M Gounder
BMJ Case Reports.2021; 14(5): e240296. CrossRef
18F-FDG PET/CT imaging for aggressive melanotic schwannoma of the L3 spinal root
Xun-Ze Shen, Wei Wang, Zhou-Ye Luo
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Hemorrhagic spinal melanotic schwannoma presenting as acute chest pain: A case report and literature review
Dallas J. Soyland, Dylan R. Goehner, Kayla M. Hoerschgen, Troy D. Gust, Shawn M. Vuong
Surgical Neurology International.2021; 12: 164. CrossRef
Retroperitoneal Recurrence of Melanotic Schwannoma on 18F-FDG PET/CT
Xiangliu OuYang, Lichun Zheng, Xiaoming Zhang
Clinical Nuclear Medicine.2021; 46(12): 991. CrossRef
Schwannoma originating from the common iliac artery: a case report
Seung-Myoung Son, Chang Gok Woo
Journal of International Medical Research.2020; 48(2): 030006051984979. CrossRef
Intraosseous Melanotic Schwannoma in the Sacrum Mimicking Primary Bone Tumor
Yoshitaka Nagashima, Yusuke Nishimura, Kaoru Eguchi, Takayuki Awaya, Satoshi Yoshikawa, Shoichi Haimoto, Toshihiko Wakabayashi, Masahito Hara
NMC Case Report Journal.2020; 7(3): 107. CrossRef
Extramedullary melanotic schwannoma recurrence in the cervical vertebral arch: a case report and review of the literature
Zongbin Hou, Teng Shi, Guangrun Li, Lin Tian, Xinna Li, Xiaoyang Liu
Journal of International Medical Research.2020; 48(8): 030006052094791. CrossRef
Extramedullary malignant melanotic schwannoma of the spine: Case report and an up to date systematic review of the literature
Georgios Solomou, Adikarige Haritha Dulanka Silva, Adrianna Wong, Ute Pohl, Nikolaos Tzerakis
Annals of Medicine and Surgery.2020; 59: 217. CrossRef
Melanotic Schwannoma of the Vagina: A Report of a Very Rare Tumor and Review of the Literature
Kofi Effah, Stefan Seidl, Edith Gorges, Patrick Kafui Akakpo
Case Reports in Obstetrics and Gynecology.2019; 2019: 1. CrossRef
Melanotic Schwannomas Are Rarely Seen Pigmented Tumors with Unpredictable Prognosis and Challenging Diagnosis
Elif Keskin, Sumeyye Ekmekci, Ozgur Oztekin, Gulden Diniz
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Editorial

History of the Official Journal Published by the Korean Society of Pathologists: From the Korean Journal of Pathology to the Journal of Pathology and Translational Medicine: Se Hoon Kim, Chong Jai Kim, SoonWon Hong; J Pathol Transl Med. 2017;51(1):1-6. Published online January 13, 2017; DOI: https://doi.org/10.4132/jptm.2017.01.07

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A Multistakeholder Approach to the Airport Gate Assignment Problem: Application of Fuzzy Theory for Optimal Performance Indicator Selection
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Brief Case Report

Perivascular Epithelioid Cell Tumor Arising in the Sacrum: A Case Report: Yoon Sung Bae, Se Hoon Kim; Korean J Pathol. 2014;48(4):331-334. Published online August 26, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.4.331

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Original Article

Diagnostic Accuracy of Cerebrospinal Fluid (CSF) Cytology in Metastatic Tumors: An Analysis of Consecutive CSF Samples: Yoon Sung Bae, June-Won Cheong, Won Seok Chang, Sewha Kim, Eun Ji Oh, Se Hoon Kim; Korean J Pathol. 2013;47(6):563-568. Published online December 24, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.6.563

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Abstract PDF

Background

Cerebrospinal fluid (CSF) examination can be used to verify the presence of primary malignancies as well as cases of central nervous system (CNS) metastasis. Because of its importance, there have been several studies concerning the sensitivity of CSF cytology. To determine the practical use and reproducibility of diagnoses based on CSF cytology, we evaluated this test by analyzing cytology results from consecutive CSF samples.

Methods

Between July 2010 and June 2013, 385 CSF cytology samples from 42 patients were collected. The samples were gathered using a ventricular catheter and reservoir. CSF cytology of all patients was examined more than two times with immunocytochemistry for cytokeratin.

Results

Primary neoplastic sites and histologic types of patients' metastatic cancer were diverse. The overall sensitivity for detecting malignancy was 41.3%. Even within short-term intervals, diagnoses frequently changed.

Conclusions

Our results were inconsistent, with low sensitivity, when compared to the results of previous studies. However, CSF evaluation can still provide valuable diagnostic and prognostic information because adjuvant treatments are now routinely performed in patients with CNS metastasis. Negative CSF cytology results should not be ignored, and continuous CSF follow-up is essential for following the clinical course of patients with metastatic cancer involving the CNS.

Citations

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Numb cheek syndrome in breast cancer: a case report
Zhibin Tan, Si Ying Tan
Frontiers in Oncology.2024;[Epub] CrossRef
Body fluids: Comparison of liquid based cytology with conventional cytopreparatory technique
ShyamH Nemade, MeherbanoM Kamal
Indian Journal of Pathology and Microbiology.2023; 66(1): 75. CrossRef
Standardizing a volume benchmark for cerebrospinal fluids for optimal diagnostic accuracy
David Kim, Susan A. Alperstein, Momin T. Siddiqui
Diagnostic Cytopathology.2021; 49(2): 258. CrossRef
Evaluating Infectious, Neoplastic, Immunological, and Degenerative Diseases of the Central Nervous System with Cerebrospinal Fluid-Based Next-Generation Sequencing
Konstantinos I. Tsamis, Hercules Sakkas, Alexandros Giannakis, Han Suk Ryu, Constantina Gartzonika, Ilias P. Nikas
Molecular Diagnosis & Therapy.2021; 25(2): 207. CrossRef
Imaging of Intraspinal Tumors
Luke N. Ledbetter, John D. Leever
Radiologic Clinics of North America.2019; 57(2): 341. CrossRef
Isolated leptomeningeal carcinomatosis and possible fungal meningitis as late sequelae of oesophageal adenocarcinoma
Richard Dumbill, Sanja Thompson, Heiko Peschl, GDH Turner, Charles Woodrow
BMJ Case Reports.2019; 12(11): e230117. CrossRef
Cytomorphological and immunocytochemical examinations of cerebrospinal fluid in primary and metastatic brain lesions
M. V. Savostikova, L. Ya. Fomina, E. S. Fedoseeva, E. Yu. Furminskaya
Onkologiya. Zhurnal imeni P.A.Gertsena.2018; 7(1): 28. CrossRef
Metastatic Breast Carcinoma in Cerebrospinal Fluid: A Cytopathological Review of 15 Cases
Rema Rao, Syed A. Hoda, Alan Marcus, Rana S. Hoda
The Breast Journal.2017; 23(4): 456. CrossRef
Clinicocytological analysis of cases with positive cerebrospinal fluid in our hospital
Nozomi IWAMOTO, Mitsuaki ISHIDA, Akiko KAGOTANI, Nozomi KASUGA, Muneo IWAI, Yuji HAYASHI, Namie ARITA, Yoshimitsu MIYAHIRA, Ryoji KUSHIMA
The Journal of the Japanese Society of Clinical Cytology.2016; 55(5): 291. CrossRef

Case Report

Cytologic Features of Giant Cell Ependymoma: A Case Report and Review of the Literature: Myoung Ju Koh, Sun Och Yoon, Hyae Min Jeon, Hyeon Joo Jeong, Soon Won Hong, Se Hoon Kim; Korean J Pathol. 2012;46(5):507-513. Published online October 25, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.5.507

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Abstract PDF

Here, we present a case of anaplastic giant cell ependymoma (GCE) occurring in a 15-year-old woman. Squash smear slides for intraoperative frozen section diagnosis revealed oval to round cell clusters with a papillary structure in a fibrillary background. This was occasionally accompanied by the presence of bizarre pleomorphic giant cells with hyperchromatic nuclei and prominent intranuclear inclusions. These intranuclear inclusions were a key clue to diagnosis of ependymoma. Histologic analysis revealed features of a high-grade tumor with perivascular pseudorosettes and bizarre pleomorphic giant cells, which established the diagnosis of GCE. We performed a review of literatures about the cytologic features of GCE, including our case, thus proposing that intraoperative frozen diagnosis of GCE would be established by squash smear preparations featuring the mitosis and necrosis, as well as the high cellularity, and the presence of giant cells showing hyperchromatic nuclei with eosinophilic cytoplasm and intranuclear inclusions/pseudoinclusions.

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Report of a case of giant cell ependymoma with unusual clinical and pathological presentation
Mónica B. Mezmezian, Victor Del Caño, Liliana G. Olvi
Neuropathology.2019; 39(4): 313. CrossRef
Giant Cell Ependymoma of Cervicomedullary Junction: A Case Report of a Long-Term Survivor and Literature Review
Martina Cappelletti, Andrea G. Ruggeri, Giorgia Iacopino, Roberto Delfini
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Immunohistochemical features of giant cell ependymoma of the filum terminale with unusual clinical and radiological presentation
Fernando Candanedo-Gonzalez, Cindy Sharon Ortiz-Arce, Samuel Rosales-Perez, Ana Lilia Remirez-Castellanos, Candelaria Cordova-Uscanga, Armando Gamboa-Dominguez
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World Neurosurgery.2017; 108: 997.e9. CrossRef

Original Article

Value of Additional Immunocytochemical Stain for Cytokeratin in the Diagnosis of Leptomeningeal Involvement of Metastatic Carcinoma.: Junjeong Choi, Se Hoon Kim; Korean J Pathol. 2011;45(5):516-519.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.5.516

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Abstract PDF: BACKGROUND
The purpose of this study was to describe potential pitfalls in the diagnosis of metastatic adenocarcinoma in cerebrospinal fluid (CSF) and to suggest additional work in association with cytokeratin immunocytochemistry for the proper diagnosis, especially in the specimens with low cellularity.
METHODS
We collected 267 cytologic specimens of CSF from patients, who were diagnosed over a 9-month period. Each of the individual samples were divided into half the sample size and processed via both, ThinPrep (TP) with Papanicolau stain and cytocentrifugation-based preparation (cytospin, CP) with immunocytochemical stain for cytokeratin.
RESULTS
Amongst the 267 cases, 45 cases from 22 patients were diagnosed to be positive for metastasis adenocarcinoma in CSF. TP with Papanicolau stain showed satisfactory cytomorphology when compared with specimen of CP preparation and cytokeratin immunocytochemical staining. All the TP processed cases belonged to satisfactory/superior categories based on the assessment of technical artifact, which potentially helps in decreasing diagnositc errors. However, in 10 out of 45 cases, diagnostic atypical cells were present only in one of the two slides.
CONCLUSIONS
Immunocytochemical stain for cytokeratin along with TP processed specimen helps in decreasing potential diagnostic errors in the cytological diagnosis of metastatic carcinoma in CSF specimen.

Case Reports

Symptomatic Graular Cell Tumor Involving Intra- and Suprasellar Area: A case report.: Se Hoon Kim, Sun Ho Kim, Tai Seung Kim; Korean J Pathol. 1999;33(9):745-750.

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Abstract PDF: Symptomatic parasellar granular cell tumor is a very rare tumor. To the best of our knowledge, 43 cases was be found in the English literatures. We recently experienced a case of a parasellar granular cell tumor in a 61-year-old female who had bilateral temporal hemianopsia and severe panhypopituitarism. The tumor was composed of diffuse sheets of polygonal cells with abundant eosinophilic PAS positive granular cytoplasm. In the immunohistochemical and ultrastructural examinations, the tumor failed to show any evidence of Schwann cell or glial differentiation. These findings suggest that granular cell tumor has heterogenous cell types of origin.

Williams Syndrome in an Infant An autopsy case report .: Jeong Hae Kie, Se Hoon Kim, Jae Young Choi, Sang Ho Cho; Korean J Pathol. 1999;33(11):1090-1093.

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Abstract PDF: Williams syndrome is a congenital disorder characterized by mental retardation, loquacious personalities, dysmorphic face, and vascular and valvular abnormalities. The etiology of this syndrome was one allelic loss of elastin gene, exhibiting a submicroscopic deletion, at 7q11.23. Sudden death is an infrequently recognized complication. The mechanism of sudden death is explained by myocardial ischemia, decreased cardiac output, and arrhythmia by anatomical abnormality of coronary artery stenosis and severe biventricular outflow tract obstruction. We report an autopsy case of a 80 day-old male with Williams syndrome. Five days before admission, cardiac murmur was detected incidentally on ascultation at a local clinic during a visit for vaccination. He was transferred to our hospital and cardiac catheterization was done. He died suddenly next day. Postmortem examination revealed a dysmorphic face and multiple cardiovascular abnormalities including supravalvular aortic stenosis with narrowed coronary artery ostia, supravalvular pulmonic stenosis, secundum type of atrial septal defect, right ventricular hypertrophy, and renal artery stenosis. Histologically, aorta and pulmonary, bronchial, and renal arteries showed markedly hyperplastic medial elastic laminae approximately three times thick compared to those of age-matched normal artery. The elastic fibers of the innermost two thirds of media were disposed in a normal orderly parallel fashion. In outer third of the media, the elastic fibers had lost the normal orderly arrangement.

Hepatic Veno-occlusive Disease Developed after Irradiation: A report of three cases .: Kyoungsoo Har, Se Hoon Kim, Young Nyun Park, Chanil Park; Korean J Pathol. 2000;34(5):381-385.

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Abstract PDF: Hepatic veno-occlusive disease (VOD) is a rare disease due to occlusion of the terminal hepatic venules and/or sublobular veins, which is a result of endothelial damage from pyrrolizidine alkaloids in herbal teas, irradiation of the liver, or chemotherapy particularly in association with bone marrow transplantation. We recently experienced three cases of VOD developed after radiation therapy. Two cases occurred in hepatocellular carcinoma patients of a 37-year-old man with B viral chronic hepatitis and a 22-year-old man with B viral cirrhosis and the other in a 64-year-old patient with esophageal squamous cell carcinoma. For the treatment of hepatocellular carcinoma, chemoembolization with lipiodol and adriamycin, and external irradiation on the liver mass were done. The total radiation dose was 5400 cGy and 3000 cGy in each case. Five months and 3 months after irradiation, respectively, the resected liver masses showed extensive necrosis due to pre-operative treatment. To treat esophageal carcinoma, pre-operative concurrent chemotherapy of 5-FU and radiation of 4500 cGY were done. One month after irradiation, the radical esophgectomy and wedge biopsy of the liver were done. The liver of all 3 cases showed a dark red appearance with severe congestion in contrast to the pale brown normal liver, which was not included in the radiation field. On micoscopic examination, the terminal hepatic venules and sublobular veins showed subintimal edema, fibrin deposition, and partial or total luminal occlusion by loose fibrous tissue. The centrizonal sinusoids were markedly dilatated and congested with atrophy of hepatocytes.

Isolated Polypoid Ganglioneuroma in the Rectum.: Se Hoon Kim, Chang Hwan Choi, Yong Han Paik, Won Ho Kim, Hoguen Kim; Korean J Pathol. 2001;35(4):344-346.

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Abstract PDF: Gastrointestinal ganglioneuroma is a rare benign neoplasm, composed of ganglion cells, nerve fibers, and supporting cells. Ganglioneuromas are presented as isolated polypoid ganglioneuroma, ganglioneuromatous polyposis, and diffuse ganglioneuromas. We have experienced a case of an isolated ganglioneuromatous polyp in the rectum. The patient was a 58-year-old female who had experienced low abdominal discomfort and tenesmus for 6 to 7 months. Colonoscopic examination revealed a polypoid tumor in the rectum. Microscopically, the tumor showed cystic glands, expanded lamina propria, and smooth surface epithelium. Many proliferated ganglion cells with nerve fibers were evident in the lamina propria which was extended to the submucosa.

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