"Gastrointestinal Tract Pathology"
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Malignant Peritoneal Mesothelioma: Clinical Aspects, and Therapeutic Perspectives
REVIEW ARTICLE Annals of Gastroenterology (2018) 31, 1-11 Malignant peritoneal mesothelioma: clinical aspects, and therapeutic perspectives Stergios Boussiosa, Michele Moschettab, Afroditi Karathanasia, Alexandros K. Tsiourisc, Foivos S. Kanellosc, Konstantina Tatsid, Konstantinos H. Katsanose, Dimitrios K. Christodouloue Medway NHS Foundation Trust, Kent, UK; Sarah Cannon Research Institute, London, UK; University of Ioannina, Greece; General Hospital G. Hatzikosta, Ioannina, Greece Abstract Malignant peritoneal mesothelioma (MPM) is a rare disease with a wide clinical spectrum. It arises from the peritoneal lining and commonly presents with diffuse, extensive spread throughout the abdomen and, more rarely, metastatic spread beyond the abdominal cavity. Computed tomography, magnetic resonance imaging and positron-emission tomography are important diagnostic tools used for the preoperative staging of MPM. The definitive diagnosis is based on histopathological analysis, mainly via immunohistochemistry. In this regard, paired- box gene 8 negativity represents a useful diagnostic biomarker for differentiating MPM from ovarian carcinoma. In addition, BRCA1-associated protein-1 (BAP1) loss is specific to MPM and allows it to be distinguished from both benign mesothelial lesions and ovarian serous tumors. Cytoreductive surgery (CRS) with hyperthermic intraperitoneal chemotherapy (HIPEC) has become an increasingly important therapeutic approach, while systemic therapies are still being developed. Histology, Ki-67, completeness of cytoreduction, -
Mesothelin's Role As a Biomarker and Therapeutic Target for Malignant
cancers Review Hitting the Bull’s-Eye: Mesothelin’s Role as a Biomarker and Therapeutic Target for Malignant Pleural Mesothelioma Dannel Yeo 1,2,3 , Laura Castelletti 1,2,3 , Nico van Zandwijk 2,3,4 and John E. J. Rasko 1,2,3,5,* 1 Li Ka Shing Cell & Gene Therapy Program, The University of Sydney, Camperdown, NSW 2050, Australia; [email protected] (D.Y.); [email protected] (L.C.) 2 Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2050, Australia; [email protected] 3 Cell and Molecular Therapies, Royal Prince Alfred Hospital, Sydney Local Health District (SLHD), Camperdown, NSW 2050, Australia 4 Concord Repatriation General Hospital, Sydney Local Health District (SLHD), Concord, NSW 2139, Australia 5 Gene and Stem Cell Therapy Program, Centenary Institute, The University of Sydney, Camperdown, NSW 2050, Australia * Correspondence: [email protected]; Tel.: +61-295656160 Simple Summary: Mesothelioma is a deadly disease with a dismal prognosis. Since its discovery, mesothelin, a cell surface protein, has been a promising biomarker and therapeutic target due to its overexpression in mesothelioma and limited expression in normal cells. This review summarizes the clinical studies that have examined mesothelin as a biomarker and therapeutic target in mesothelioma and explores future perspectives in its role to improve patient management. Abstract: Malignant pleural mesothelioma (MPM) is an aggressive cancer with limited treatment options and poor prognosis. MPM originates from the mesothelial lining of the pleura. Mesothelin Citation: Yeo, D.; Castelletti, L.; van (MSLN) is a glycoprotein expressed at low levels in normal tissues and at high levels in MPM. -
Abdominal and Pelvic Imaging Findings Associated with Sex Hormone Abnormalities
UCSF UC San Francisco Previously Published Works Title Abdominal and pelvic imaging findings associated with sex hormone abnormalities. Permalink https://escholarship.org/uc/item/7cq623wg Journal Abdominal radiology (New York), 44(3) ISSN 2366-004X Authors Kurzbard-Roach, Nicole Jha, Priyanka Poder, Liina et al. Publication Date 2019-03-01 DOI 10.1007/s00261-018-1844-1 Peer reviewed eScholarship.org Powered by the California Digital Library University of California Abdominal Radiology https://doi.org/10.1007/s00261-018-1844-1 (0123456789().,-volV)(0123456789().,-volV) REVIEW Abdominal and pelvic imaging findings associated with sex hormone abnormalities 1 1 1 2 Nicole Kurzbard-Roach • Priyanka Jha • Liina Poder • Christine Menias Ó Springer Science+Business Media, LLC, part of Springer Nature 2018 Abstract Hormones are substances that serve as chemical communication between cells. They are unique biological molecules that affect multiple organ systems and play a key role in maintaining homoeostasis. In this role, they are usually produced from a single organ and have defined target organs. However, hormones can affect non-target organs as well. As such, biochemical and hormonal abnormalities can be associated with anatomic changes in multiple target as well as non-target organs. Hormone-related changes may take the form of an organ parenchymal abnormality, benign neoplasm, or even malignancy. Given the multifocal action of hormones, the observed imaging findings may be remote from the site of production, and may actually be multi-organ in nature. Anatomic findings related to hormone level abnormalities and/or laboratory biomarker changes may be identified with imaging. The purpose of this image-rich review is to sensitize radiologists to imaging findings in the abdomen and pelvis that may occur in the context of hormone abnormalities, focusing primarily on sex hormones and their influence on these organs. -
UEMS 2020.11 Syllabus of the ETR in Rare Adult Cancers
UNION EUROPÉENNE DES MÉDECINS SPÉCIALISTES EUROPEAN UNION OF MEDICAL SPECIALISTS Association internationale sans but lucratif International non-profit organisation RUE DE L’INDUSTRIE, 24 T +32 2 649 51 64 BE- 1040 BRUSSELS F +32 2 640 37 30 www.uems.eu [email protected] UEMS 2020.11 Syllabus for residents and trainees in Rare Adult Solid Cancers The basic goal of this syllabus is to provide an understanding between the instructor and trainee so there is minimal confusion in the topics, with clear expectations. It is not a classical syllabus as it contains descriptions from different areas, but it still summarizes major and specific topics that should be covered during the training course of a resident. This syllabus is intended as supporting reference material, and the precise content and priorities of training may vary in different training institutions. The syllabus can also be modified to reflect each instructor's teaching philosophy towards the trainees. 1. There are scientific publications, web pages, and conference materials available online that could be used for educational purposes for various types of rare adult solid cancers. This is a comprehensive summary of them. 2. There are significant differences in the number of available scientific publications and reviews for different rare adult solid cancers. Some, like sarcomas, have a very robust literature, while others have been sparsely researched and consequently the availability of study materials is quite poor. 3. These differences also apply to life events and natural history. In the list of the EU CE accredited events there is a strong underrepresentation for some types of rare adult solid cancers. -
Ct Findings of Hypervascular Malignant Peritoneal Mesothelioma
Compurerized Radial. Vol. I I, No. 2, pp. 91-94, 1987 0730-4862/87 53.00 + 0.00 Printed in the U.S.A. All rights reserved Copyright 8 1987 Pergamon Journals Ltd CT FINDINGS OF HYPERVASCULAR MALIGNANT PERITONEAL MESOTHELIOMA DEBORAH S. GRANKE,* JAMES H. ELLIS and BRUCE D. RICHMOND Radiology Service (114) Veterans Administration Medical Center and Department of Radiology. University of Michigan Medical School, Ann Arbor, MI 48105. U.S.A. (Received 19 June 1986; in revised form 21 October 1986; received for publicatiorr 6 November 1986) Abstract-A case of peritoneal mesothelioma is presented in which CT demonstrated abnormal regions of increased vascularity in the omentum corresponding to hypervascular omental lesions shown by angiography. This CT appearance has not been described in prior reports of CT in peritoneal mesothelioma. Mesothelioma. peritoneal Angiography Computed tomography INTRODUCTION Reports of computed tomography (CT) in mesothelioma describe peritoneal involvement that may be extensive, with confluent tumor in layers, masses, and/or nodules and mesenteric infiltration [l, 21. A recent report of anteriography in peritoneal mesothelioma described three cases of mildly to moderately hypervascular omental lesions without arteriovenous shunting; however, the one CT scan performed was nondiagnostic [3]. We report a case of peritoneal mesothelioma where CT demon- strated abnormal regions of increased vascularity in the omentum corresponding to the hypervascular omental lesions shown by angiography. CASE REPORT A 54-year-old white male presented with a 3-month history of insidious onset of diffuse abdominal tenderness, early satiety, abdominal bloating, and crampy abdominal pain. His physical exam was unremarkable, and routine laboratory tests, sigmoidoscopy, and barium enema were normal. -
Antitumor Activity of Mir-34A in Peritoneal Mesothelioma Relies on C-MET and AXL Inhibition
El Bezawy et al. Journal of Hematology & Oncology (2017) 10:19 DOI 10.1186/s13045-016-0387-6 RESEARCH Open Access Antitumor activity of miR-34a in peritoneal mesothelioma relies on c-MET and AXL inhibition: persistent activation of ERK and AKT signaling as a possible cytoprotective mechanism Rihan El Bezawy1, Michelandrea De Cesare1, Marzia Pennati1, Marcello Deraco2, Paolo Gandellini1, Valentina Zuco1*† and Nadia Zaffaroni1*† Abstract Background: The value of microRNAs (miRNAs) as novel targets for cancer therapy is now widely recognized. However, no information is currently available on the expression/functional role of miRNAs in diffuse malignant peritoneal mesothelioma (DMPM), a rapidly lethal disease, poorly responsive to conventional treatments, for which the development of new therapeutic strategies is urgently needed. Here, we evaluated the expression and biological effects of miR-34a—one of the most widely deregulated miRNAs in cancer and for which a lipid-formulated mimic is already clinically available—in a large cohort of DMPM clinical samples and a unique collection of in house-developed preclinical models, with the aim to assess the potential of a miR-34a-based approach for disease treatment. Methods: miR-34a expression was determined by qRT-PCR in 45 DMPM and 7 normal peritoneum specimens as well as in 5 DMPM cell lines. Following transfection with miR-34a mimic, the effects on DMPM cell phenotype, in terms of proliferative potential, apoptotic rate, invasion ability, and cell cycle distribution, were assessed. In addition, three subcutaneous and orthotopic DMPM xenograft models were used to examine the effect of miR-34a on tumorigenicity. The expression of miRNA targets and the activation status of relevant pathways were investigated by western blot. -
Desmoplastic Small Round Cell Tumor of the Abdomen: a Case Report and Literature Review of Therapeutic Options
Vol.4, No.4, 207-211 (2012) Health http://dx.doi.org/10.4236/health.2012.44031 Desmoplastic small round cell tumor of the abdomen: A case report and literature review of therapeutic options Hafida Benhammane1*, Leila Chbani2, Abdelmalek Ousadden3, Ouadii Mouquit3, Siham Tizniti4, Afaf Riffi Amarti2, Nouafal Mellas1, Omar El Mesbahi1 1Department of Medical Oncology, Hassan II University Hospital, Fez, Morocco; *Corresponding Author: [email protected] 2Department of Pathology, Hassan II University Hospital, Fez, Morocco 3Department of General Surgery, Hassan II University Hospital, Fez, Morocco 4Department of Radiology, Hassan II University Hospital, Fez, Morocco Received 22 December 2011; revised 18 January 2012; accepted 6 February 2012 ABSTRACT rent therapeutic options include multiagent chemothe- rapy and aggressive surgical debulking and radiotherapy Desmoplastic small round cell tumor (DSRCT) is [4,5]. The addition of hyperthermic intra-peritoneal che- a rare and highly aggressive variety of sarcoma motherapy in the multimodal approach has been reported arising typically from abdominal or pelvic peri- in very few cases but no effect on survival has been clearly toneum. Diagnosis and treatment approaches of demonstrated [6]. this entity are complex and require a skilled, ex- The prognosis of this disease is poor with a Median perienced, multidisciplinary team. Authors re- survival of 17 months approximately [7]. port their experience with a case of an intra-ab- We report a case of an intra-abdominal DSRCT in a 37 dominal DSRCT arising in a 37-year-old young -year-old young man who was treated with combination man in order to discuss the clinico-pathological chemotherapy and surgery. -
Liver & Pancreas
276A ANNUAL MEETING ABSTRACTS 1263 Renal Pathology in Hematopoeitic Cell Transplantation Design: We studied 58 consecutive liver allografts from 53 pediatric patients (<18 Recipients yrs) who underwent OLT from 1995-2006. All allograft biopsies were scored for the ML Troxell, M Pilapil, D Miklos, JP Higgins, N Kambham. OHSU, Portland, OR; following features: 1) CLH (mild, moderate, severe), 2) portal AR (mild, moderate, Stanford Univ, Stanford, CA. severe), 3) zone 3 fibrosis (mild=perivenular or severe=bridging), and 4) ductopenia. Background: Hematopoietic cell transplantation (HCT) associated acute and chronic Five explanted livers that were removed during the course of retransplantation for graft renal toxicity can be due to cytotoxic conditioning agents, radiation, infection, failure in this group were also reviewed. immunosuppressive agents, ischemia, and graft versus host disease (GVHD). We have Results: Mean age at OLT was 7 yrs (range 7 wks-18 yrs) with 29 boys and 24 girls. reviewed consecutive renal biopsy specimens in HCT patients from a single center. We reviewed a total of 417 allograft biopsies (mean 7.2 per allograft) obtained 2 days Design: The files of Stanford University Medical Center Department of Pathology were - 11 yrs post-OLT; 200 (48%) of these were protocol biopsies. Forty-six allografts (79%) searched for renal biopsy specimens in patients who received HCT (1995-2005); 11 had >1 yr of histologic follow-up, 29 (50%) had >3 yrs, and 21 (36%) >5 yrs. Overall, cases were identified (post BMT time 0.7 to 14.5 years). The biopsies were processed CLH was observed on at least one occasion in 38 (66%) allografts. -
Conversion of Morphology of ICD-O-2 to ICD-O-3
NATIONAL INSTITUTES OF HEALTH National Cancer Institute to Neoplasms CONVERSION of NEOPLASMS BY TOPOGRAPHY AND MORPHOLOGY from the INTERNATIONAL CLASSIFICATION OF DISEASES FOR ONCOLOGY, SECOND EDITION to INTERNATIONAL CLASSIFICATION OF DISEASES FOR ONCOLOGY, THIRD EDITION Edited by: Constance Percy, April Fritz and Lynn Ries Cancer Statistics Branch, Division of Cancer Control and Population Sciences Surveillance, Epidemiology and End Results Program National Cancer Institute Effective for cases diagnosed on or after January 1, 2001 TABLE OF CONTENTS Introduction .......................................... 1 Morphology Table ..................................... 7 INTRODUCTION The International Classification of Diseases for Oncology, Third Edition1 (ICD-O-3) was published by the World Health Organization (WHO) in 2000 and is to be used for coding neoplasms diagnosed on or after January 1, 2001 in the United States. This is a complete revision of the Second Edition of the International Classification of Diseases for Oncology2 (ICD-O-2), which was used between 1992 and 2000. The topography section is based on the Neoplasm chapter of the current revision of the International Classification of Diseases (ICD), Tenth Revision, just as the ICD-O-2 topography was. There is no change in this Topography section. The morphology section of ICD-O-3 has been updated to include contemporary terminology. For example, the non-Hodgkin lymphoma section is now based on the World Health Organization Classification of Hematopoietic Neoplasms3. In the process of revising the morphology section, a Field Trial version was published and tested in both the United States and Europe. Epidemiologists, statisticians, and oncologists, as well as cancer registrars, are interested in studying trends in both incidence and mortality. -
Neoplasms of the Liver
Modern Pathology (2007) 20, S49–S60 & 2007 USCAP, Inc All rights reserved 0893-3952/07 $30.00 www.modernpathology.org Neoplasms of the liver Zachary D Goodman Department of Hepatic and Gastrointestinal Pathology, Armed Forces Institute of Pathology, Washington, DC, USA Primary neoplasms of the liver are composed of cells that resemble the normal constituent cells of the liver. Hepatocellular carcinoma, in which the tumor cells resemble hepatocytes, is the most frequent primary liver tumor, and is highly associated with chronic viral hepatitis and cirrhosis of any cause. Benign tumors, such as hepatocellular adenoma in a noncirrhotic liver or a large, dysplastic nodule in a cirrhotic liver, must be distinguished from well-differentiated hepatocellular carcinoma. Cholangiocarcinoma, a primary adenocarci- noma that arises from a bile duct, is second in frequency. It is associated with inflammatory disorders and malformations of the ducts, but most cases are of unknown etiology. Cholangiocarcinoma resembles adenocarcinomas arising in other tissues, so a definitive diagnosis relies on the exclusion of an extrahepatic primary and distinction from benign biliary lesions. Modern Pathology (2007) 20, S49–S60. doi:10.1038/modpathol.3800682 Keywords: hepatocellular carcinoma; hepatocellular adenoma; dysplastic nodule; cholangiocarcinoma A basic principle of pathology is that a neoplasm more than 3 to 1 (Figure 1). Among primary liver usually differentiates in the manner of cells that are tumors that come to clinical attention, over three- normally present in the tissue in which the fourths are hepatocellular carcinoma (HCC), while neoplasm arises. Thus, primary neoplasms and the second most common primary malignancy, tumor-like lesions that occur in the liver usually cholangiocarcinoma (CC) accounts for 8% (Figure resemble the major constituent cells of the liver, 2). -
Localized Biphasic Malignant Peritoneal Mesothelioma with Rhabdoid Features Involving the Liver: Case Report and Review of the Literature
Hindawi Case Reports in Pathology Volume 2019, Article ID 2732674, 7 pages https://doi.org/10.1155/2019/2732674 Case Report Localized Biphasic Malignant Peritoneal Mesothelioma with Rhabdoid Features Involving the Liver: Case Report and Review of the Literature Dalal Hassan and Saverio Ligato Department of Pathology and Laboratory Medicine, Hartford Hospital, Hartford, CT, USA Correspondence should be addressed to Dalal Hassan; [email protected] Received 24 April 2019; Accepted 15 July 2019; Published 28 July 2019 Academic Editor: Fatemeh Mahjoub Copyright © 2019 Dalal Hassan and Saverio Ligato. Tis is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Introduction. Localized malignant mesotheliomas, defned as sharply circumscribed tumors of the serosal membrane with the microscopic appearance of difuse malignant mesothelioma, are rare tumors; their behavior and prognosis are uncertain. Intrahepatic mesotheliomas are postulated to arise from mesothelial cells of Glisson’s capsule. Case Presentation.A69-year-old female with no history of asbestos exposure presented with a one-month history of increasing abdominal pain associated with constitutional symptoms. Computerized Tomography (CT) scan of the abdomen and pelvis revealed a sizable sof tissue mass within the right paracolic gutter, abutting the inferior hepatic margin, the lateral abdominal wall, and descending colon. Ultrasound- guided biopsy of the mass suggested a poorly diferentiated hepatocellular carcinoma. Tere was no disease elsewhere on PET scan. Surgical resection of the mass was performed. Pathological assessment suggested the tumor to be arising from the liver with invasion of the liver, abdominal wall musculature, and the adventitial surface of the ascending colon. -
ASC Webinar: Practical Approach to Liver Cytology Indication
ASC Webinar: Practical Approach to Liver Cytology Barbara A. Centeno, M.D. Director of AP Quality Assurance Director of Cytopathology and Senior member/Moffitt Cancer Center Professor/Departments of Oncologic Sciences Morsani College of Medicine University of South Florida 1 LIVER OUTLINE • Background • Cytology of benign liver and liver nodules • Cytology of Primary Liver Cancers – Hepatocellular carcinoma – Cholangiocarcinoma • Ancillary studies for key differential diagnoses • Metastases 2 Indication: Evaluation of a Mass • Nonneoplastic lesions – hemangioma • Benign liver nodule –FNH – Adenoma • Primary epithelial cancers – HCC –ICC • Less common nonepithelial neoplasms and malignancies • Metastases 3 KEY DIAGNOSTIC ISSUES • Distinction of benign or reactive hepatocytes in nonneoplastic or benign liver nodules from well- differentiated hepatocellular carcinoma • Distinction of poorly differentiated hepatocellular carcinoma from cholangiocarcinoma or metastases • Determination of primary site of origin of metastases • Determination of histogenesis of poorly differentiated malignancie 4 APPROACH TO THE DIAGNOSIS OF LIVER LESIONS • Clinical history – Age and gender • Hepatoblastoma in infants • Adenoma in females – Underlying liver disease • HCV and Cirrhosis as a predisposing risk factor for HCC – Previous history of carcinoma • Radiological imaging – Borders, possible vascular lesion • Cytological findings • Ancillary studies • Correlate all findings 5 Hepatocytes • Monolayered sheets,thin trabeculae, single cells or small, loose groups