A case report of hepatic angiomyolipoma, inflammatory subtype. Clinico-pathological characterization: a diagnostic challenge

Abstract Background Angiomyolipoma is a benign mesenchymal neoplasm of a wide histological heterogeneity belonging to the PEComa “family.” The liver, after the kidney, is their second most frequent location. However, inflammatory hepatic AMLs constitute a rare entity, with only fourteen documented c...

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Main Authors: Francisco Javier Velasco-Albendea, María Jesús Gil-Belmonte, Beatriz Estébanez-Ferrero, Orlando Fuentes-Porcel, Bruno José Nievas-Soriano
Format: Article
Language:English
Published: BMC 2023-04-01
Series:Diagnostic Pathology
Subjects:
Online Access:https://doi.org/10.1186/s13000-023-01343-7
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author Francisco Javier Velasco-Albendea
María Jesús Gil-Belmonte
Beatriz Estébanez-Ferrero
Orlando Fuentes-Porcel
Bruno José Nievas-Soriano
author_facet Francisco Javier Velasco-Albendea
María Jesús Gil-Belmonte
Beatriz Estébanez-Ferrero
Orlando Fuentes-Porcel
Bruno José Nievas-Soriano
author_sort Francisco Javier Velasco-Albendea
collection DOAJ
description Abstract Background Angiomyolipoma is a benign mesenchymal neoplasm of a wide histological heterogeneity belonging to the PEComa “family.” The liver, after the kidney, is their second most frequent location. However, inflammatory hepatic AMLs constitute a rare entity, with only fourteen documented cases until 2020. These neoplasms can overlap morphological features of IgG4-related diseases, being of great diagnostic relevance to demonstrating myomelanocytic-lineage differentiation of the neoplastic cells. Case presentation: we present a new case of an inflammatory hepatic AML resembling an IgG4-related disease in a 35-year-old woman with a subcapsular 5 cm mass confined to segment VII of the right hepatic lobe. Although having reduced its size along the tumor’s natural evolution, complete tumor resection was decided due to its hypermetabolic behavior (max. SUV = 12,6) assessed by PET-CT scan. Finally, the patient underwent a right hepatectomy due to spontaneous rupture and bleeding of the lesion during the intervention. All the diagnostic and therapeutic procedures occurred in the last months of the COVID-19 pandemic. Conclusions: This review aims to describe inflammatory hepatic AML histological and immunohistochemical features. We further sought to establish a clinicopathological contextualization of this tumoral subtype.
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spelling doaj.art-8f63e1c10a654eb187806974a00a55a02023-04-30T11:05:49ZengBMCDiagnostic Pathology1746-15962023-04-011811910.1186/s13000-023-01343-7A case report of hepatic angiomyolipoma, inflammatory subtype. Clinico-pathological characterization: a diagnostic challengeFrancisco Javier Velasco-Albendea0María Jesús Gil-Belmonte1Beatriz Estébanez-Ferrero2Orlando Fuentes-Porcel3Bruno José Nievas-Soriano4Department of Pathology, Torrecardenas HospitalDepartment of Pathology, Torrecardenas HospitalDepartment of General Surgery and Digestive Diseases. Torrecardenas HospitalDepartment of General Surgery and Digestive Diseases. Torrecardenas HospitalNursing, Physiotherapy, and Medicine Department, University of AlmeríaAbstract Background Angiomyolipoma is a benign mesenchymal neoplasm of a wide histological heterogeneity belonging to the PEComa “family.” The liver, after the kidney, is their second most frequent location. However, inflammatory hepatic AMLs constitute a rare entity, with only fourteen documented cases until 2020. These neoplasms can overlap morphological features of IgG4-related diseases, being of great diagnostic relevance to demonstrating myomelanocytic-lineage differentiation of the neoplastic cells. Case presentation: we present a new case of an inflammatory hepatic AML resembling an IgG4-related disease in a 35-year-old woman with a subcapsular 5 cm mass confined to segment VII of the right hepatic lobe. Although having reduced its size along the tumor’s natural evolution, complete tumor resection was decided due to its hypermetabolic behavior (max. SUV = 12,6) assessed by PET-CT scan. Finally, the patient underwent a right hepatectomy due to spontaneous rupture and bleeding of the lesion during the intervention. All the diagnostic and therapeutic procedures occurred in the last months of the COVID-19 pandemic. Conclusions: This review aims to describe inflammatory hepatic AML histological and immunohistochemical features. We further sought to establish a clinicopathological contextualization of this tumoral subtype.https://doi.org/10.1186/s13000-023-01343-7AngiomyolipomaLiverImmunoglobulin G4-Related diseaseInflammatory
spellingShingle Francisco Javier Velasco-Albendea
María Jesús Gil-Belmonte
Beatriz Estébanez-Ferrero
Orlando Fuentes-Porcel
Bruno José Nievas-Soriano
A case report of hepatic angiomyolipoma, inflammatory subtype. Clinico-pathological characterization: a diagnostic challenge
Diagnostic Pathology
Angiomyolipoma
Liver
Immunoglobulin G4-Related disease
Inflammatory
title A case report of hepatic angiomyolipoma, inflammatory subtype. Clinico-pathological characterization: a diagnostic challenge
title_full A case report of hepatic angiomyolipoma, inflammatory subtype. Clinico-pathological characterization: a diagnostic challenge
title_fullStr A case report of hepatic angiomyolipoma, inflammatory subtype. Clinico-pathological characterization: a diagnostic challenge
title_full_unstemmed A case report of hepatic angiomyolipoma, inflammatory subtype. Clinico-pathological characterization: a diagnostic challenge
title_short A case report of hepatic angiomyolipoma, inflammatory subtype. Clinico-pathological characterization: a diagnostic challenge
title_sort case report of hepatic angiomyolipoma inflammatory subtype clinico pathological characterization a diagnostic challenge
topic Angiomyolipoma
Liver
Immunoglobulin G4-Related disease
Inflammatory
url https://doi.org/10.1186/s13000-023-01343-7
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