Swathi Prabhu, Vidya Monappa, Naveena A N Kumar, Nischitha Suvarna, Vishwapriya Mahadev Godkhindi
{"title":"Intraperitoneal Dedifferentiated Liposarcoma: Unveiling a Rare Diagnosis in Peritoneal Fluid Cytology - A Case Report with Literature Review.","authors":"Swathi Prabhu, Vidya Monappa, Naveena A N Kumar, Nischitha Suvarna, Vishwapriya Mahadev Godkhindi","doi":"10.1159/000540368","DOIUrl":null,"url":null,"abstract":"<p><strong>Introduction: </strong>Sarcomas presenting as malignant effusions are rare, and diagnosing them on fluid cytology requires expertise and clinicoradiological correlation as cells undergo morphological changes, mimicking carcinoma or mesothelioma.</p><p><strong>Case presentation: </strong>We present a case of a 70-year-old man with abdominal distention and pain, initially suggestive of carcinoma on peritoneal fluid cytology. However, subsequent analysis with immunohistochemistry on the cell block revealed diffuse nuclear positivity for MDM2, leading to the diagnosis of dedifferentiated liposarcoma.</p><p><strong>Conclusion: </strong>The cytological diagnosis of dedifferentiated liposarcoma is challenging and requires a high index of suspicion, with clinicoradiological correlation. Utilizing immunohistochemistry on cell block samples enhances diagnostic accuracy and guides appropriate patient management.</p>","PeriodicalId":6959,"journal":{"name":"Acta Cytologica","volume":" ","pages":"436-441"},"PeriodicalIF":1.6000,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11548099/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Cytologica","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1159/000540368","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/7/26 0:00:00","PubModel":"Epub","JCR":"Q3","JCRName":"PATHOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Introduction: Sarcomas presenting as malignant effusions are rare, and diagnosing them on fluid cytology requires expertise and clinicoradiological correlation as cells undergo morphological changes, mimicking carcinoma or mesothelioma.
Case presentation: We present a case of a 70-year-old man with abdominal distention and pain, initially suggestive of carcinoma on peritoneal fluid cytology. However, subsequent analysis with immunohistochemistry on the cell block revealed diffuse nuclear positivity for MDM2, leading to the diagnosis of dedifferentiated liposarcoma.
Conclusion: The cytological diagnosis of dedifferentiated liposarcoma is challenging and requires a high index of suspicion, with clinicoradiological correlation. Utilizing immunohistochemistry on cell block samples enhances diagnostic accuracy and guides appropriate patient management.
期刊介绍:
With articles offering an excellent balance between clinical cytology and cytopathology, ''Acta Cytologica'' fosters the understanding of the pathogenetic mechanisms behind cytomorphology and thus facilitates the translation of frontline research into clinical practice. As the official journal of the International Academy of Cytology and affiliated to over 50 national cytology societies around the world, ''Acta Cytologica'' evaluates new and existing diagnostic applications of scientific advances as well as their clinical correlations. Original papers, review articles, meta-analyses, novel insights from clinical practice, and letters to the editor cover topics from diagnostic cytopathology, gynecologic and non-gynecologic cytopathology to fine needle aspiration, molecular techniques and their diagnostic applications. As the perfect reference for practical use, ''Acta Cytologica'' addresses a multidisciplinary audience practicing clinical cytopathology, cell biology, oncology, interventional radiology, otorhinolaryngology, gastroenterology, urology, pulmonology and preventive medicine.