From benign appearance to malignant truth: a case report of mesenteric dedifferentiated liposarcoma with inflammatory myofibroblastic tumor-like features

Abstract Dedifferentiated liposarcoma (DDLPS) with inflammatory myofibroblastic tumor (IMT)-like features is a rare and diagnostically challenging variant of soft tissue sarcoma. We report the case of a 74-year-old man who presented with a mesenteric mass in 2022 and recurrent tumors in 2024. Tissue...

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Main Authors: Simon Schallenberg, Miriam Schulte, Mihnea P. Dragomir, Armin Jarosch, Wolfgang Hartmann, Eva Wardelmann
Format: Article
Language:English
Published: BMC 2025-04-01
Series:Diagnostic Pathology
Online Access:https://doi.org/10.1186/s13000-025-01640-3
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author Simon Schallenberg
Miriam Schulte
Mihnea P. Dragomir
Armin Jarosch
Wolfgang Hartmann
Eva Wardelmann
author_facet Simon Schallenberg
Miriam Schulte
Mihnea P. Dragomir
Armin Jarosch
Wolfgang Hartmann
Eva Wardelmann
author_sort Simon Schallenberg
collection DOAJ
description Abstract Dedifferentiated liposarcoma (DDLPS) with inflammatory myofibroblastic tumor (IMT)-like features is a rare and diagnostically challenging variant of soft tissue sarcoma. We report the case of a 74-year-old man who presented with a mesenteric mass in 2022 and recurrent tumors in 2024. Tissue from both primary and recurrent tumors were submitted to our reference center for pathological reevaluation, with a suspicion of IMT being suspected. Although the tumors exhibited morphological characteristics consistent with those observed in IMT, they displayed distinctive histological, immunohistochemical and molecular features suggestive of DDLPS with IMT-like features, including amplification of the MDM2 gene. This report highlights the morphological spectrum of DDLPS, the diagnostic role of molecular pathology, and the importance of differentiating this aggressive neoplasm from benign entities such as IMT.
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issn 1746-1596
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publishDate 2025-04-01
publisher BMC
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series Diagnostic Pathology
spelling doaj-art-16fdba2d607647f987b77da730b51e8a2025-08-20T02:11:55ZengBMCDiagnostic Pathology1746-15962025-04-012011610.1186/s13000-025-01640-3From benign appearance to malignant truth: a case report of mesenteric dedifferentiated liposarcoma with inflammatory myofibroblastic tumor-like featuresSimon Schallenberg0Miriam Schulte1Mihnea P. Dragomir2Armin Jarosch3Wolfgang Hartmann4Eva Wardelmann5Institute of Pathology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Zu BerlinGerhard-Domagk-Institut Für Pathologie, Universitätsklinikum MünsterInstitute of Pathology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Zu BerlinInstitute of Pathology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Zu BerlinGerhard-Domagk-Institut Für Pathologie, Universitätsklinikum MünsterGerhard-Domagk-Institut Für Pathologie, Universitätsklinikum MünsterAbstract Dedifferentiated liposarcoma (DDLPS) with inflammatory myofibroblastic tumor (IMT)-like features is a rare and diagnostically challenging variant of soft tissue sarcoma. We report the case of a 74-year-old man who presented with a mesenteric mass in 2022 and recurrent tumors in 2024. Tissue from both primary and recurrent tumors were submitted to our reference center for pathological reevaluation, with a suspicion of IMT being suspected. Although the tumors exhibited morphological characteristics consistent with those observed in IMT, they displayed distinctive histological, immunohistochemical and molecular features suggestive of DDLPS with IMT-like features, including amplification of the MDM2 gene. This report highlights the morphological spectrum of DDLPS, the diagnostic role of molecular pathology, and the importance of differentiating this aggressive neoplasm from benign entities such as IMT.https://doi.org/10.1186/s13000-025-01640-3
spellingShingle Simon Schallenberg
Miriam Schulte
Mihnea P. Dragomir
Armin Jarosch
Wolfgang Hartmann
Eva Wardelmann
From benign appearance to malignant truth: a case report of mesenteric dedifferentiated liposarcoma with inflammatory myofibroblastic tumor-like features
Diagnostic Pathology
title From benign appearance to malignant truth: a case report of mesenteric dedifferentiated liposarcoma with inflammatory myofibroblastic tumor-like features
title_full From benign appearance to malignant truth: a case report of mesenteric dedifferentiated liposarcoma with inflammatory myofibroblastic tumor-like features
title_fullStr From benign appearance to malignant truth: a case report of mesenteric dedifferentiated liposarcoma with inflammatory myofibroblastic tumor-like features
title_full_unstemmed From benign appearance to malignant truth: a case report of mesenteric dedifferentiated liposarcoma with inflammatory myofibroblastic tumor-like features
title_short From benign appearance to malignant truth: a case report of mesenteric dedifferentiated liposarcoma with inflammatory myofibroblastic tumor-like features
title_sort from benign appearance to malignant truth a case report of mesenteric dedifferentiated liposarcoma with inflammatory myofibroblastic tumor like features
url https://doi.org/10.1186/s13000-025-01640-3
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