2018/12/21 by Ayah Al-Qaderi, Ahmad T. Mansour
Medicine · #Cardiac tumors and thrombi #Cutaneous lymphoproliferative disorders research #Vascular Tumors and Angiosarcomas
paper · doi:10.5858/arpa.2017-0430-rs
crossref issued 2018/12/21 · crossref published 2018/12/21 · crossref published-online 2018/12/21 · openalex publication_date 2018/12/21 · crossref created 2018/12/21 · crossref published-print 2019/06/01 · openalex created_date 2025/10/10 · crossref deposited 2025/12/03 · crossref indexed 2026/07/29 · openalex updated_date 2026/07/30
First described in 2003 as epithelioid-sarcoma-like hemangioendothelioma and later in 2011 as pseudomyogenic hemangioendothelioma, this rare vascular tumor is of intermediate malignant potential. It was officially included for the first time in the most recent World Health Organization's Classification of Tumours of Soft Tissue and Bone. It typically affects young adults with a predilection for the distal lower extremity. This tumor lacks morphologic features of vascular differentiation but shows unequivocal evidence of such differentiation with the use of relevant immunohistochemical stains such as FLI1, ERG, and CD31. Pseudomyogenic hemangioendothelioma can be diagnostically challenging and might be confused with other tumors, such as epithelioid sarcoma. In this review we discuss the clinical, morphologic, and immunohistochemical features of this tumor with particular emphasis on the differential diagnosis. Salient molecular and prognostic features are also reviewed.