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Colon tumor

Mesenchymal tumors

Angiomyolipoma of colon

Reviewers: Charanjeet Singh, M.D. (see Reviewers page)
Revised: 26 March 2012, last major update March 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.

See also Kidney topic

Case reports

● Usually no association with tuberous sclerosis (Mod Pathol 1999;12:1132, Z Gastroenterol 2003;41:715, Dis Colon Rectum 2003;46:547, Gastroenterol Jpn 1989;24:407)
● May be HMB45 negative (Am J Gastroenterol 1996;91:1852)
● Monotypic (J Clin Pathol 2005;58:1107) or pleomorphic (also called PEComa, Int J Surg Pathol 2000;8:67)

Micro images

Epithelioid tumor with only myomatous component and no adipose tissue or typical vasculature

Positive stains

● HMB45, CD68, vimentin, desmin and smooth muscle actin

Negative stains

● CD34

End of Colon tumor > Mesenchymal tumors > Angiomyolipoma of colon

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