Molecular and Immunohistochemical Testing in Mesothelioma and Other Mesothelial Lesions

Archives of Pathology and Laboratory Medicine 2024 January 8 [Link] Yin P Hung, Lucian R Chirieac Abstract Context.—: Molecular testing has increasingly been utilized in the evaluation of mesothelioma. Diffuse mesothelioma comprises multiple distinct genetic subgroups. While most diffuse mesotheliomas lack oncogenic kinase mutations and instead harbor alterations involving tumor suppressors and chromatin regulators, a…

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Comparison of Immunohistochemistry, Next-generation Sequencing and Fluorescence In Situ Hybridization for Detection of MTAP Loss in Pleural Mesothelioma

Modern Pathology 2024 January 5 [Link] Christopher A Febres-Aldana, Jason C Chang, Achim A Jungbluth, Prasad S Adusumilli, Francis M Bodd, Denise Frosina, Jerica A Geronimo, Enmily Hernandez, Helen Irawan, Michael D Offin, Natasha Rekhtman, William D Travis, Chad Vanderbilt, Marjorie G Zauderer, Yanming Zhang, Marc Ladanyi, Soo-Ryum Yang, Jennifer L Sauter Abstract 9p21 deletions…

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Diagnostic value of computed tomography and magnetic resonance imaging in ovarian malignant mesothelioma

BMC Medial Imaging 2023 December 14 [Link] Hai-Tao Wang, Ai-Jing Li, Ji-Yong Gao, Liang-Jiong Wang, Yu-Tao Wang, Wen-Ying Yu, Jian Zhang Abstract Objective: To investigate the diagnostic value of computed tomography (CT) and magnetic resonance imaging (MRI) in ovarian malignant mesothelioma (OMM). Methods: The clinical and imaging data of 10 pathologically-confirmed OMM patients were analyzed…

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Clinically Occult Diffuse Pleural Mesothelioma in Patients Presenting With Spontaneous Pneumothorax

American Journal of Clinical Pathology 2023 May 31 [Link] Daffolyn Rachael Fels Elliott, Kristine E Konopka, Steven M Hrycaj, Kiran H Lagisetty, Jeffrey L Myers, Carol F Farver, Tao Huang Abstract Objectives: To report histologic features of unsuspected diffuse pleural mesothelioma (DPM) in surgical specimens for pneumothorax and demonstrate how ancillary markers support a diagnosis…

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Prognostic role of CD74, CD10 and Ki-67 immunohistochemical expression in patients with diffuse malignant peritoneal mesothelioma: a retrospective study

BMC Cancer 2023 May 5 [Link] Yufei Liang, Chunying Li, Yingying Liu, Liang Tian, Dongliang Yang Abstract Background: Diagnosis and treatment of diffuse malignant peritoneal mesothelioma (DMPM) are still challenging. The aim of the present study was to explore the correlation between CD74, CD10, Ki-67 and clinicopathological parameters, and identify independent prognostic factors of DMPM.…

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Reliability of assessing morphologic features with prognostic significance in cytology specimens of epithelioid diffuse pleural mesothelioma and implications for cytopathology reporting

Cancer Cytopathology 2023 May 1 [Link] Yan Li, Abeer M Salama, Marina K Baine, Francis M Bodd, Michael D Offin, Natasha Rekhtman, Marjorie G Zauderer, William D Travis, Prasad S Adusumilli, Jennifer L Sauter Abstract Background: The World Health Organization incorporates morphologic features with prognostic significance in the 2021 classification of epithelioid diffuse pleural mesothelioma…

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Comprehensive epithelial biomarker analysis of malignant mesothelioma: EpCAM positivity is a potential diagnostic pitfall

Cancer Cytopathology 2023 April 17 [Link] Yili Zhu, Simone Moore, Aihui Wang, Elizabeth George, Grace M Allard, Diane M Libert, Alarice C Lowe Abstract Background: Epithelial cell adhesion molecule (EpCAM) is frequently used to distinguish carcinoma from background mesothelial cells during cytologic examination of body cavity fluids. Previously, the authors identified one malignant mesothelioma case…

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Surgical case report: The rare case of incidental retroperitoneal mesothelioma

International Journal of Surgery Case Reports 2023 April [Link] Yat Cheung Chung, Travis Ackermann, Yeu Sheng Ang Abstract Introduction and importance: This is a first reported case of isolated retroperitoneal mesothelioma. Most patients present with symptoms of abdominal pain, distension and weight loss. However, a minority of cases are asymptomatic and are found incidentally on…

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Long-Term Survival of More than 5 Years with Maintenance Therapy Using Single-Agent Pemetrexed in a Patient with Diffuse Malignant Peritoneal Mesothelioma

Case Reports in Medicine 2023 February 28 [Link] Yasuo Otsuka, Yoriaki Komeda, Masayuki Takeda, Takayuki Takahama, Masashi Kono, Mamoru Takenaka, Satoru Hagiwara, Naoshi Nishida, Hiroshi Kashida, Masatoshi Kudo Abstract A 76-year-old woman presented with lower abdominal pain and nausea and was referred to the gastroenterology department in our institution. Previous contrast-enhanced computed tomography (CE-CT) for…

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Mesothelioma In Situ Mimicking Well-differentiated Papillary Mesothelial Tumor

The American Journal of Surgical Pathology 2023 March 6 [Link] Francoise Galateau-Salle, Trevor Hamilton, Andrea MacNeill, Véronique Hofman, Ruth Sequeiros, Christine Sagan, Nolwenn Le Stang, Andrew Churg Abstract We have previously hypothesized that well-differentiated papillary mesothelial tumor (WDPMT) consists of 2 morphologically identical lesions, one of which is true WDPMT, while the other is a…

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