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Colon tumor

Mesenchymal tumors

Liposarcoma of colon

Reviewers: Charanjeet Singh, M.D. (see Reviewers page)
Revised: 16 May 2012, last major update May 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.

General
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● Frequently in retroperitoneum
● Tumors adherent to colon may involve colonic wall

Case reports
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● 46 year old man with 12 cm subserosal tumor (J Gastrointest Surg 2006;10:652)
● 52 year old woman with well-differentiated tumor (Int J Surg Pathol 2004;12:281)
● 75 year old woman with well differentiated tumor of sigmoid mesocolon (Hepatogastroenterology 1998;45:2151)

Gross images
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Tumor of pericolonic adipose tissue

Micro description
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● Various subtypes
● Dedifferentiated tumors resemble GIST, but usually have foci of well-differentiated liposarcoma

Micro images
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Well-differentiated liposarcoma of axilla

Negative stains
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● CD117

End of Colon tumor > Mesenchymal tumors > Liposarcoma of colon

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