Soft tissue
So called fibrohistiocytic
Fibrohistiocytic tumors-general


Topic Completed: 3 October 2019

Minor changes: 14 September 2020

Copyright: 2019-2021, PathologyOutlines.com, Inc.

PubMed Search: Soft tissue fibrohistiocytic[TI]

Brendan C. Dickson, M.D., M.Sc.
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Table of Contents
Definition / general
Cite this page: Dickson B. Fibrohistiocytic tumors-general. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/softtissuefibrohistiocyticgeneral.html. Accessed April 18th, 2021.
Definition / general
  • Due to controversy over the precise lineage of these tumors, these tumors are termed "so called" fibrohistiocytic tumors (Fletcher, WHO Classification of Tumours of Soft Tissue and Bone, 2013)
  • Tumors previously called MFH (malignant fibrous histiocytoma) are now called undifferentiated or unclassified sarcoma; they are subclassified based on cell morphology: undifferentiated pleomorphic sarcoma, spindle cell, epithelioid cell and round cell
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