Mammary-Type Myofibroblastoma



Mammary-Type Myofibroblastoma


Cyril Fisher, MD, DSc, FRCPath









Hematoxylin & eosin shows a cellular spindle cell proliferation incorporating subcutaneous fat image.






Hematoxylin & eosin shows short uniform spindle cells arranged in fascicles and cords, infiltrating between collagen bundles.


TERMINOLOGY


Synonyms



  • Mammary myofibroblastoma


  • Extramammary myofibroblastoma


Definitions



  • Benign spindle cell lesion of modified smooth muscle cells in fibrous and fatty stroma


  • Originally described in breast


  • Also occurs in soft tissue locations including in “milkline”



    • Subcutis



      • Inguinal region most common

Jul 9, 2016 | Posted by in PATHOLOGY & LABORATORY MEDICINE | Comments Off on Mammary-Type Myofibroblastoma
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