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Colon tumor


Adenosquamous carcinoma of colon

Reviewers: Charanjeet Singh, M.D. (see Reviewers page)
Revised: 13 October 2011, last major update September 2011
Copyright: (c) 2003-2011, PathologyOutlines.com, Inc.

Clinical features

● Rare (0.1 to 0.2% of colon carcinomas, Am J Surg Pathol 1978;2:47)
● Associated with ulcerative colitis
● Aggressive behavior (Dis Colon Rectum 1996;39:1265)
● Poorer prognosis with advanced disease than adenocarcinoma (Dis Colon Rectum 1999;42:258)

Case reports

● Tumor of rectosigmoid junction (Am Surg 2006;72:754)
● With nodal metastases (J Exp Clin Cancer Res 2001;20:293)
● 78 year old woman with hypercalcemia (Int J Clin Oncol 2005;10:144)

Micro description

● Malignant glandular and squamous components

Positive stains

● CD44 (squamous component, Arch Pathol Lab Med 2000;124:212)

Additional references

Dis Colon Rectum 2001;44:341

End of Colon tumor > Carcinoma > Adenosquamous carcinoma of colon

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