Journal of Pathology and Translational Medicine

Seung-Mo Hong

7 Articles

Histologic subtyping of ampullary carcinoma for targeted therapy: Seung-Mo Hong; J Pathol Transl Med. 2021;55(3):235-235. Published online May 13, 2021; DOI: https://doi.org/10.4132/jptm.2021.04.28

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Lymph node size and its association with nodal metastasis in ductal adenocarcinoma of the pancreas: Jaehoon Shin, Seungbeom Shin, Jae Hoon Lee, Ki Byung Song, Dae Wook Hwang, Hyoung Jung Kim, Jae Ho Byun, HyungJun Cho, Song Cheol Kim, Seung-Mo Hong; J Pathol Transl Med. 2020;54(5):387-395. Published online July 21, 2020; DOI: https://doi.org/10.4132/jptm.2020.06.23

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Background
Although lymph node metastasis is a poor prognostic factor in patients with pancreatic ductal adenocarcinoma (PDAC), our understanding of lymph node size in association with PDAC is limited. Increased nodal size in preoperative imaging has been used to detect node metastasis. We evaluated whether lymph node size can be used as a surrogate preoperative marker of lymph node metastasis.
Methods
We assessed nodal size and compared it to the nodal metastatic status of 200 patients with surgically resected PDAC. The size of all lymph nodes and metastatic nodal foci were measured along the long and short axis, and the relationships between nodal size and metastatic status were compared at six cutoff points.
Results
A total of 4,525 lymph nodes were examined, 9.1% of which were metastatic. The mean size of the metastatic nodes (long axis, 6.9±5.0 mm; short axis, 4.3±3.1 mm) was significantly larger than that of the non-metastatic nodes (long axis, 5.0±4.0 mm; short axis, 3.0±2.0 mm; all p<.001). Using a 10 mm cutoff, the sensitivity, specificity, positive predictive value, overall accuracy, and area under curve was 24.8%, 88.0%, 17.1%, 82.3%, and 0.60 for the long axis and 7.0%, 99.0%, 40.3%, 90.6%, and 0.61 for the short axis, respectively.
Conclusions
The metastatic nodes are larger than the non-metastatic nodes in PDAC patients. However, the difference in nodal size was too small to be identified with preoperative imaging. The performance of preoperative radiologic imaging to predict lymph nodal metastasis was not good. Therefore, nodal size cannot be used a surrogate preoperative marker of lymph node metastasis.

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Prevalence of Adenopathy at Chest Computed Tomography After Vaccination for Severe Acute Respiratory Syndrome Coronavirus 2
Georgeann McGuinness, Jeffrey B. Alpert, Geraldine Brusca-Augello, Lea Azour, Jane P. Ko, Farah Tamizuddin, Elliott K. Gozansky, William H. Moore
Journal of Computer Assisted Tomography.2023; 47(1): 50. CrossRef
Regional lymph node metastasis detected on preoperative CT and/or FDG-PET may predict early recurrence of pancreatic adenocarcinoma after curative resection
Ja Kyung Yoon, Mi-Suk Park, Seung-Seob Kim, Kyunghwa Han, Hee Seung Lee, Seungmin Bang, Ho Kyoung Hwang, Sang Hyun Hwang, Mijin Yun, Myeong-Jin Kim
Scientific Reports.2022;[Epub] CrossRef
Role of CA 19.9 in the Management of Resectable Pancreatic Cancer: State of the Art and Future Perspectives
Alessandro Coppola, Vincenzo La Vaccara, Tommaso Farolfi, Michele Fiore, Roberto Cammarata, Sara Ramella, Roberto Coppola, Damiano Caputo
Biomedicines.2022; 10(9): 2091. CrossRef
Evaluation of the 8th Edition AJCC Staging System for the Clinical Staging of Pancreatic Cancer
Huapyong Kang, Seung-seob Kim, Min Je Sung, Jung Hyun Jo, Hee Seung Lee, Moon Jae Chung, Jeong Youp Park, Seung Woo Park, Si Young Song, Mi-Suk Park, Seungmin Bang
Cancers.2022; 14(19): 4672. CrossRef
Comparison of MRI and CT-based radiomics for preoperative prediction of lymph node metastasis in pancreatic ductal adenocarcinoma
Piaoe Zeng, Chao Qu, Jianfang Liu, Jingjing Cui, Xiaoming Liu, Dianrong Xiu, Huishu Yuan
Acta Radiologica.2022; : 028418512211425. CrossRef
Does direct invasion of peripancreatic lymph nodes impact survival in patients with pancreatic ductal adenocarcinoma? A retrospective dual-center study
Daisuke Hashimoto, Sohei Satoi, Mitsuaki Ishida, Kenji Nakagawa, Masaya Kotsuka, Tadataka Takagi, Hironori Ryota, Taichi Terai, Tatsuma Sakaguchi, Minako Nagai, So Yamaki, Takahiro Akahori, Tomohisa Yamamoto, Mitsugu Sekimoto, Masayuki Sho
Pancreatology.2021; 21(5): 884. CrossRef
CA19.9 Serum Level Predicts Lymph-Nodes Status in Resectable Pancreatic Ductal Adenocarcinoma: A Retrospective Single-Center Analysis
Alessandro Coppola, Vincenzo La Vaccara, Michele Fiore, Tommaso Farolfi, Sara Ramella, Silvia Angeletti, Roberto Coppola, Damiano Caputo
Frontiers in Oncology.2021;[Epub] CrossRef

Sarcoma metastasis to the pancreas: experience at a single institution: Miseon Lee, Joon Seon Song, Seung-Mo Hong, Se Jin Jang, Jihun Kim, Ki Byung Song, Jae Hoon Lee, Kyung-Ja Cho; J Pathol Transl Med. 2020;54(3):220-227. Published online April 22, 2020; DOI: https://doi.org/10.4132/jptm.2020.03.04

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Background
Reports of metastatic sarcoma to the pancreas are limited. We reviewed the clinicopathologic characteristics of such cases.
Methods
We reviewed 124 cases of metastatic tumors to the pancreas diagnosed at Asan Medical Center between 2000 and 2017.
Results
Metastatic tumors to the pancreas consisted of 111 carcinomas (89.5%), 12 sarcomas (9.6%), and one melanoma (0.8%). Primary sarcoma sites were bone (n = 4); brain, lung, and soft tissue (n = 2 for each); and the uterus and pulmonary vein (n = 1 for each). Pathologically, the 12 sarcomas comprised 2 World Health Organization grade III solitary fibrous tumors/hemangiopericytomas, and one case each of synovial sarcoma, malignant solitary fibrous tumor, undifferentiated pleomorphic sarcoma, osteosarcoma, mesenchymal chondrosarcoma, intimal sarcoma, myxofibrosarcoma, myxoid liposarcoma, rhabdomyosarcoma, subtype uncertain, and high-grade spindle-cell sarcoma of uncertain type. The median interval between primary cancer diagnosis and pancreatic metastasis was 28.5 months. One case manifested as a solitary pancreatic osteosarcoma metastasis 15 months prior to detection of osteosarcoma in the femur and was initially misdiagnosed as sarcomatoid carcinoma of the pancreas.
Conclusions
The metastatic sarcoma should remain a differential diagnosis when spindle-cell malignancy is found in the pancreas, even for solitary lesions or in patients without prior history.

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Metástasis pancreática de sarcoma, un hallazgo infrecuente
Daniel Aparicio-López, Jorge Chóliz-Ezquerro, Carlos Hörndler-Algárate, Mario Serradilla-Martín
Gastroenterología y Hepatología.2022;[Epub] CrossRef
First Recurrence of Synovial Sarcoma Presenting With Solitary Pancreatic Mass
Raja R Narayan, Greg W Charville, Daniel Delitto, Kristen N Ganjoo
Cureus.2022;[Epub] CrossRef
Intravenous Leiomyosarcoma of the Lower Extremity: As Peripheral as It Gets
Levent F Umur, Selami Cakmak, Mehmet Isyar, Hamdi Tokoz
Cureus.2021;[Epub] CrossRef
Could the burden of pancreatic cancer originate in childhood?
Smaranda Diaconescu, Georgiana Emmanuela Gîlcă-Blanariu, Silvia Poamaneagra, Otilia Marginean, Gabriela Paduraru, Gabriela Stefanescu
World Journal of Gastroenterology.2021; 27(32): 5322. CrossRef
Staged Surgical Resection of Primary Pulmonary Synovial Sarcoma with Synchronous Multiple Pancreatic Metastases: Report of a Rare Case and Review of the Literature
Panagiotis Dorovinis, Nikolaos Machairas, Stylianos Kykalos, Paraskevas Stamopoulos, George Agrogiannis, Nikolaos Nikiteas, Georgios C. Sotiropoulos
Journal of Gastrointestinal Cancer.2021; 52(3): 1151. CrossRef

Coexisting Mucinous Cystic Neoplasm of the Pancreas and Type 1 Autoimmune Pancreatitis: Mee-Jeong Kim, Tae Jun Song, Hyoung Jung Kim, Song-Cheol Kim, Myung-Hwan Kim, Seung-Mo Hong; J Pathol Transl Med. 2019;53(2):125-128. Published online November 14, 2018; DOI: https://doi.org/10.4132/jptm.2018.10.25

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Type 1 autoimmune pancreatitis (AIP1) is an IgG4-related systemic disease that mimics tumors. We report a rare case of AIP1 accompanied by mucinous cystic neoplasm (MCN). A pancreatic lesion was incidentally detected in a woman in her 60s. After 6 years of follow-up, the lesion abruptly increased in size. Computed tomography showed a 3.5 cm unilocular cyst in the tail of the pancreas and distal pancreatectomy was performed. On microscopic examination, the cyst was lined by mucinous and non-mucinous epithelial cells with mild cytologic atypia. The surrounding stroma comprised ovarian-type spindle cells with progesterone receptor positivity. The pericystic pancreas exhibited multifocal lymphoid follicles, lymphoplasmacytic infiltrations, obliterative phlebitis, and storiform fibrosis. IgG4-positive plasma cell infiltration (215 cells high-power field) and the IgG4/IgG ratio (57%) were increased. Cases of MCN coexisting with AIP1 are extremely rare; only two such cases have been reported in the English-language literature. This third case featured low-grade MCN with AIP1.

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Histological features of autoimmune pancreatitis and IgG4-related sclerosing cholangitis with a correlation with imaging findings
Kenji NOTOHARA
Choonpa Igaku.2023; 50(1): 55. CrossRef
Histological features of autoimmune pancreatitis and IgG4-related sclerosing cholangitis with a correlation with imaging findings
Kenji Notohara
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Suizo.2020; 35(6): 465. CrossRef
Mucinous cystic neoplasm of the pancreas with type-1 autoimmune pancreatitis-like lesion
Kevin Gowing, David F. Schaeffer, Hui-Min Yang
Human Pathology: Case Reports.2019; 18: 200339. CrossRef

Loss of Progesterone Receptor Expression Is an Early Tumorigenesis Event Associated with Tumor Progression and Shorter Survival in Pancreatic Neuroendocrine Tumor Patients: Sung Joo Kim, Soyeon An, Jae Hoon Lee, Joo Young Kim, Ki-Byung Song, Dae Wook Hwang, Song Cheol Kim, Eunsil Yu, Seung-Mo Hong; J Pathol Transl Med. 2017;51(4):388-395. Published online June 8, 2017; DOI: https://doi.org/10.4132/jptm.2017.03.19

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Abstract PDF

Background
Pancreatic neuroendocrine tumors (PanNETs) are the second most common pancreatic neoplasms and there is no well-elucidated biomarker to stratify their detection and prognosis. Previous studies have reported that progesterone receptor (PR) expression status was associated with poorer survival in PanNET patients.
Methods
To validate previous studies, PR protein expression was assessed in 21 neuroendocrine microadenomas and 277 PanNETs and compared with clinicopathologic factors including patient survival.
Results
PR expression was gradually decreased from normal islets (49/49 cases, 100%) to neuroendocrine microadenoma (14/21, 66.6%) to PanNETs (60/277, 21.3%; p < .001). PanNETs with loss of PR expression were associated with increased tumor size (p < .001), World Health Organization grade (p = .001), pT classification (p < .001), perineural invasion (p = .028), lymph node metastasis (p = .004), activation of alternative lengthening of telomeres (p = .005), other peptide hormonal expression (p < .001) and ATRX/DAXX expression (p = .015). PanNET patients with loss of PR expression (5-year survival rate, 64.1%) had significantly poorer recurrence-free survival outcomes than those with intact PR expression (90%) by univariate (p = .012) but not multivariate analyses. Similarly, PanNET patients with PR expression loss (5-year survival rate, 76%) had significantly poorer overall survival by univariate (p = .015) but not multivariate analyses.
Conclusions
Loss of PR expression was noted in neuroendocrine microadenomas and was observed in the majority of PanNETs. This was associated with increased grade, tumor size, and advanced pT and pN classification; and was correlated with decreased patient survival time by univariate but not multivariate analyses. Loss of PR expression can provide additional information on shorter disease-free survival in PanNET patients.

Citations

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Venous invasion and lymphatic invasion are correlated with the postoperative prognosis of pancreatic neuroendocrine neoplasm
Sho Kiritani, Junichi Arita, Yuichiro Mihara, Rihito Nagata, Akihiko Ichida, Yoshikuni Kawaguchi, Takeaki Ishizawa, Nobuhisa Akamatsu, Junichi Kaneko, Kiyoshi Hasegawa
Surgery.2023; 173(2): 365. CrossRef
Combined Infiltrative Macroscopic Growth Pattern and Infiltrative Microscopic Tumor Border Status Is a Novel Surrogate Marker of Poor Prognosis in Patients With Pancreatic Neuroendocrine Tumor
Bokyung Ahn, Joo Young Kim, Seung-Mo Hong
Archives of Pathology & Laboratory Medicine.2023; 147(1): 100. CrossRef
Diagnostic and Prognostic Impact of Progesterone Receptor Immunohistochemistry: A Study Evaluating More Than 16,000 Tumors
Florian Viehweger, Lisa-Marie Tinger, David Dum, Natalia Gorbokon, Anne Menz, Ria Uhlig, Franziska Büscheck, Andreas M. Luebke, Claudia Hube-Magg, Andrea Hinsch, Doris Höflmayer, Christoph Fraune, Patrick Lebok, Sören Weidemann, Maximilian Lennartz, Frank
Analytical Cellular Pathology.2022; 2022: 1. CrossRef
Prognostic Nomograms to Predict Overall Survival and Cancer-Specific Survival of Patients With Pancreatic Neuroendocrine Tumors
Zuoli Song, Sumei Wang, Yujing Wu, Jinjuan Zhang, Shuye Liu
Pancreas.2021; 50(3): 414. CrossRef
Pancreatic High-Grade Neuroendocrine Neoplasms in the Korean Population: A Multicenter Study
Haeryoung Kim, Soyeon An, Kyoungbun Lee, Sangjeong Ahn, Do Youn Park, Jo-Heon Kim, Dong-Wook Kang, Min-Ju Kim, Mee Soo Chang, Eun Sun Jung, Joon Mee Kim, Yoon Jung Choi, So-Young Jin, Hee Kyung Chang, Mee-Yon Cho, Yun Kyung Kang, Myunghee Kang, Soomin Ahn
Cancer Research and Treatment.2020; 52(1): 263. CrossRef
Systemic distribution of progesterone receptor subtypes in human tissues
Teeranut Asavasupreechar, Ryoko Saito, Yasuhiro Miki, Dean P. Edwards, Viroj Boonyaratanakornkit, Hironobu Sasano
The Journal of Steroid Biochemistry and Molecular Biology.2020; 199: 105599. CrossRef
Progesteron receptor expression in insulin producing cells of neuroendocrine neoplasms
Tomoyoshi Tachibana, Atsuko Kasajima, Takeshi Aoki, Tomoaki Tabata, Keely McNamara, Samaneh Yazdani, Sato Satoko, Fumiyoshi Fujishima, Fuyuhiko Motoi, Michiaki Unno, Hironobu Sasano
The Journal of Steroid Biochemistry and Molecular Biology.2020; 201: 105694. CrossRef
Prognostic and predictive factors on overall survival and surgical outcomes in pancreatic neuroendocrine tumors: recent advances and controversies
Lingaku Lee, Tetsuhide Ito, Robert T Jensen
Expert Review of Anticancer Therapy.2019; 19(12): 1029. CrossRef
Immunohistochemistry, carcinomas of unknown primary, and incidence rates
Edward B. Stelow, Hadi Yaziji
Seminars in Diagnostic Pathology.2018; 35(2): 143. CrossRef
Carbonic anhydrase 9 expression in well-differentiated pancreatic neuroendocrine neoplasms might be associated with aggressive behavior and poor survival
Joo Young Kim, Sang Hwa Lee, Soyeon An, Sung Joo Kim, You-Na Sung, Ki-Byung Song, Dae Wook Hwang, Song Cheol Kim, Seung-Mo Hong
Virchows Archiv.2018; 472(5): 739. CrossRef
Prognostic value of progesterone receptor in solid pseudopapillary neoplasm of the pancreas: evaluation of a pooled case series
Feiyang Wang, Zibo Meng, Shoukang Li, Yushun Zhang, Heshui Wu
BMC Gastroenterology.2018;[Epub] CrossRef
Estrogens modulate progesterone receptor expression and may contribute to progesterone-mediated apoptotic β-cell death
Viviane Abreu Nunes
Endocrinology&Metabolism International Journal.2018;[Epub] CrossRef

Clinical and Prognostic Significances of Cytokeratin 19 and KIT Expression in Surgically Resectable Pancreatic Neuroendocrine Tumors: Eun-Mi Son, Joo Young Kim, Soyeon An, Ki-Byung Song, Song Cheol Kim, Eunsil Yu, Seung-Mo Hong; J Pathol Transl Med. 2015;49(1):30-36. Published online January 15, 2015; DOI: https://doi.org/10.4132/jptm.2014.10.23

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17 Citations

Abstract PDF

Background
Pancreatic neuroendocrine tumors (PanNETs) are malignant endocrine neoplasms that present diverse clinical behaviors. Therefore, identification of biomarkers of PanNETs is important for stratification of the prognosis of PanNET patients. Recently, cytokeratin 19 (CK19) and KIT expression were reported to have prognostic significance in PanNET patients. Methods: To identify their prognostic significance, CK19 and KIT protein expression were assessed in 182 surgically resected PanNETs and compared with clinicopathologic factors. Results: Of 182 PanNETs cases, CK19 and KIT expression was noted in 97 (53.3%) and 16 (8.8%) cases, respectively. PanNET patients with CK19 expression had larger tumors (p=.006), higher World Health Organization (WHO) grade (p=.002) and pT classification (p<.001), increased distant metastasis (p=.004), and lymphovascular (p=.012) and perineural (p=.019) invasion. Similarly, those with KIT expression had larger tumors (p=.030), higher WHO grade (p=.001), advanced pT classification (p<.001), distant metastasis (p=.001), and lymphovascular invasion (p=.014). The 5-year survival rate for PanNET patients with KIT expression was significantly lower (62%) than that of patients without KIT expression (77%, p=.011), as determined by univariate but not by multivariate analyses. Conclusions: CK19 and KIT expression correlate with higher metastatic potential and advanced disease stage, and KIT expression is associated with worse survival in PanNET patients.

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Combined Infiltrative Macroscopic Growth Pattern and Infiltrative Microscopic Tumor Border Status Is a Novel Surrogate Marker of Poor Prognosis in Patients With Pancreatic Neuroendocrine Tumor
Bokyung Ahn, Joo Young Kim, Seung-Mo Hong
Archives of Pathology & Laboratory Medicine.2023; 147(1): 100. CrossRef
Tumor-associated nonmyelinating Schwann cell–expressed PVT1 promotes pancreatic cancer kynurenine pathway and tumor immune exclusion
Chengcao Sun, Youqiong Ye, Zhi Tan, Yuan Liu, Yajuan Li, Wei Hu, Ke Liang, Sergey D. Egranov, Lisa Angela Huang, Zhao Zhang, Yaohua Zhang, Jun Yao, Tina K. Nguyen, Zilong Zhao, Andrew Wu, Jeffrey R. Marks, Abigail S. Caudle, Aysegul A. Sahin, Jianjun Gao,
Science Advances.2023;[Epub] CrossRef
Diagnostic and prognostic impact of cytokeratin 19 expression analysis in human tumors: a tissue microarray study of 13,172 tumors
Anne Menz, Rifka Bauer, Martina Kluth, Clara Marie von Bargen, Natalia Gorbokon, Florian Viehweger, Maximilian Lennartz, Cosima Völkl, Christoph Fraune, Ria Uhlig, Claudia Hube-Magg, Noémi De Wispelaere, Sarah Minner, Guido Sauter, Simon Kind, Ronald Simo
Human Pathology.2021; 115: 19. CrossRef
The molecular biology of pancreatic neuroendocrine neoplasms: Challenges and translational opportunities
Kate Young, Naureen Starling, Anguraj Sadanandam
Seminars in Cancer Biology.2020; 61: 132. CrossRef
Pancreatic acinar cell carcinomas and mixed acinar-neuroendocrine carcinomas are more clinically aggressive than grade 1 pancreatic neuroendocrine tumours
Joo Young Kim, Jacqueline A. Brosnan-Cashman, Jiyoon Kim, Soyeon An, Kyoung-Bun Lee, Haeryoung Kim, Do Youn Park, Kee-Taek Jang, Young-Ha Oh, Ralph H. Hruban, Christopher M. Heaphy, Seung-Mo Hong
Pathology.2020; 52(3): 336. CrossRef
Morphologic Variants of Pancreatic Neuroendocrine Tumors: Clinicopathologic Analysis and Prognostic Stratification
Yue Xue, Michelle D. Reid, Burcin Pehlivanoglu, Rebecca C. Obeng, Hongmei Jiang, Bahar Memis, Shu K. Lui, Juan Sarmiento, David Kooby, Shishir K. Maithel, Bassel El-Rayes, Olca Basturk, Volkan Adsay
Endocrine Pathology.2020; 31(3): 239. CrossRef
Histological grades and prognostic markers of well-differentiated pancreatic neuroendocrine tumor (WDPNET)
Yongchao Li, Daniel Rowan, Claire P. Williamson, Meiyun Fan, Ali G. Saad, Lizhi Zhang
Journal of Pancreatology.2020; 3(4): 188. CrossRef
Clinical and histopathologic prognostic implications of the expression of cytokeratins 8, 10, 13, 14, 16, 18 and 19 in oral and oropharyngeal squamous cell carcinoma
Rima A. Safadi, Niveen I. Abdullah, Rolla F. Alaaraj, Dima H. Bader, Darshan D. Divakar, Abed A. Hamasha, Maher A. Sughayer
Archives of Oral Biology.2019; 99: 1. CrossRef
Prognostic and predictive factors on overall survival and surgical outcomes in pancreatic neuroendocrine tumors: recent advances and controversies
Lingaku Lee, Tetsuhide Ito, Robert T Jensen
Expert Review of Anticancer Therapy.2019; 19(12): 1029. CrossRef
Carbonic anhydrase 9 expression in well-differentiated pancreatic neuroendocrine neoplasms might be associated with aggressive behavior and poor survival
Joo Young Kim, Sang Hwa Lee, Soyeon An, Sung Joo Kim, You-Na Sung, Ki-Byung Song, Dae Wook Hwang, Song Cheol Kim, Seung-Mo Hong
Virchows Archiv.2018; 472(5): 739. CrossRef
CD133 expression in well-differentiated pancreatic neuroendocrine tumors: a potential predictor of progressive clinical courses
Yasuhiro Sakai, Seung-Mo Hong, Soyeon An, Joo Young Kim, Denis Corbeil, Jana Karbanová, Kyoko Otani, Kohei Fujikura, Ki-Byung Song, Song Cheol Kim, Masayuki Akita, Yoshihide Nanno, Hirochika Toyama, Takumi Fukumoto, Yonson Ku, Takanori Hirose, Tomoo Itoh,
Human Pathology.2017; 61: 148. CrossRef
Prognostic and predictive biomarkers in neuroendocrine tumours
David L. Chan, Stephen J. Clarke, Connie I. Diakos, Paul J. Roach, Dale L. Bailey, Simron Singh, Nick Pavlakis
Critical Reviews in Oncology/Hematology.2017; 113: 268. CrossRef
Loss of Progesterone Receptor Expression Is an Early Tumorigenesis Event Associated with Tumor Progression and Shorter Survival in Pancreatic Neuroendocrine Tumor Patients
Sung Joo Kim, Soyeon An, Jae Hoon Lee, Joo Young Kim, Ki-Byung Song, Dae Wook Hwang, Song Cheol Kim, Eunsil Yu, Seung-Mo Hong
Journal of Pathology and Translational Medicine.2017; 51(4): 388. CrossRef
Prognostic significance of cytokeratin 19 expression in pancreatic neuroendocrine tumor: A meta-analysis
Dong Cen, Jiang Chen, Zheyong Li, Jie Zhao, Xiujun Cai, Aamir Ahmad
PLOS ONE.2017; 12(11): e0187588. CrossRef
A retrospective cohort study of pancreatic neuroendocrine tumors at single institution over 15 years: New proposal for low- and high-grade groups, validation of a nomogram for prognosis, and novel follow-up strategy for liver metastases
Liangtao Ye, Huilin Ye, Quanbo Zhou, Zhihua Li, Qing Lin, Langping Tan, Wenchao Gao, Zhiqiang Fu, Shangyou Zheng, Rufu Chen
International Journal of Surgery.2016; 29: 108. CrossRef
Correlating and Combining Genomic and Proteomic Assessment withIn VivoMolecular Functional Imaging: Will This Be the Future Roadmap for Personalized Cancer Management?
Bhakti Basu, Sandip Basu
Cancer Biotherapy and Radiopharmaceuticals.2016; 31(3): 75. CrossRef
Recent Updates on Neuroendocrine Tumors From the Gastrointestinal and Pancreatobiliary Tracts
Joo Young Kim, Seung-Mo Hong
Archives of Pathology & Laboratory Medicine.2016; 140(5): 437. CrossRef

DPC4 Expression in the Small Intestinal Adenocarcinomas: Sun Jae Lee, Eunsil Yu, Young Kyung Bae, Kee-Taek Jang, Joon Mee Kim, Han-Ik Bae, Seung-Mo Hong, Ghil Suk Yoon; Korean J Pathol. 2012;46(5):415-422. Published online October 25, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.5.415

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Abstract PDF

Background

Small intestinal adenocarcinomas (SACs) are rare malignancies of the alimentary tract with uncertain carcinogenesis.

Methods

We investigated the expression of deleted in pancreatic cancer 4 (DPC4) in 188 cases of surgically resected SACs, using tissue microarray technology.

Results

Twenty-four of the 188 tumors showed complete loss of Smad4/DPC4 expression in cytoplasm (score, 0; 12.8%). Eighty-four and 31 cases were moderately and strongly positive, respectively (score, 2 and 3; 44.7% and 16.5%, respectively) and 49 cases were focally or weakly stained (score, 1; 29.1%). Immunohistochemistry analysis showed that the expression of Smad4/DPC4 was related to an increased risk of lymphatic invasion but not to other clinicopathological features of the tumors (tumor location, differentiation, growth pattern, T stage, direct invasion, vascular invasion, and nodal metastasis). There was no significant association between Smad4/DPC4 expression and patient survival.

Conclusions

The present research is the first study to evaluate Smad4/DPC4 expression in a large sample of SACs with clinicopathologic correlation. Future studies should focus on the immunohistochemical and molecular characteristics of SACs to clarify their tumorigenesis.

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American Registry of Pathology Expert Opinions: Evaluation of poorly differentiated malignant neoplasms on limited samples - Gastrointestinal mucosal biopsies
Andrew M. Bellizzi, Elizabeth A. Montgomery, Jason L. Hornick
Annals of Diagnostic Pathology.2020; 44: 151419. CrossRef

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