Population
8 patients with angiosarcoma involving the gastrointestinal tract (5 male, 3 female, median age 57 years).
Design
Case_series
Follow-up
1-33 months (median 12.5)
Authors
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Pathologists should include vascular markers in CK+ epithelioid GI tumor panels; case report leaves broader applicability open.
Angiosarcomas of the GI tract can display epithelioid cytomorphology and cytokeratin positivity, requiring vascular markers and CK20/S-100 to differentiate from carcinoma and melanoma.
Allison et al. (2004) studied this question.
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