College of American Pathologists
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2009 — January Case of the Month

Updated February 13, 2009


CAP Foundation January 2009 Online Case of the Month

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A 75-year-old woman developed ill-defined, red to violaceous patches and focally ulcerated nodules in the abdominal skin. One of the lesions was biopsied, and the area was excised. A 15.0 x 5.6 cm skin ellipse was excised to a depth of 2.5 cm with subcutaneous adipose tissue. The skin was indurated with focal areas of superficial hemorrhage, and there was thickening and expansion of the dermis by an ill-defined tumor.

The master list with the correct answer

  • Angiosarcoma
  • Epithelioid hemangioendothelioma
  • Epithelioid hemangioma
  • Kaposi sarcoma
  • Microvenular hemangioma
  • Sclerosing hemangioma (dermatofibroma)
  • Squamous cell carcinoma, acantholytic type

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