Soft tissue
Benign vascular tumors
Myopericytoma



Topic Completed: 1 November 2012

Revised: 27 March 2019

Copyright: 2002-2018, PathologyOutlines.com, Inc.

PubMed search: Myopericytoma [title] soft tissue

Vijay Shankar, M.D.
Page views in 2018: 5,715
Page views in 2019 to date: 4,086
Cite this page: Shankar V. Myopericytoma. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/softtissuemyopericytoma.html. Accessed July 18th, 2019.
Definition / general
  • Also called perivascular myoid tumor
  • Usually adults, 60% male, median age 52 years, youngest case was age 10
  • Affects skin (dermis or subcutis) or soft tissues of extremities, rarely head or trunk
Case reports
Treatment
  • Excision; only rarely recurs
Clinical images

Images hosted on other servers:

Lower leg

Dorsal nose

Gross images

Images hosted on other servers:

Multiple facial masses

Microscopic (histologic) description
  • Thin walled vessels and concentric, perivascular arrangement of plump spindle to round myoxid cells
  • May have hemangiopericytoma-like areas
  • Occasional prominent atypia and mitotic activity
  • Rarely infiltrative
  • No giant cells (Am J Surg Pathol 2006;30:104)
  • Rarely has lipomatous component (Cir Esp 2012;90:331)
Microscopic (histologic) images

Images hosted on other servers:

Oval cells with eosinophilic cytoplasm

Well circumscribed spindle cell tumor

Lung tumor (fig 3):
3A: SMA
3B: vimentin
3C: CD34

(a) Unencapsulated neoplasm in deep dermis extends into subcutis (arrows); (b) bland round ovoid cells with concentric perivascular pattern and many thin walled branching staghorn vessels

Positive stains
Differential diagnosis
Back to top