College of American Pathologists

2013 — September Case of the Month

Posted September 10, 2013


CAP Foundation Online Case of the Month

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An 86-year-old woman presented with nodular thickening of her scalp over an oval area of approximately 12.0 cm in greatest dimension. The nodular area had a purplish discoloration and appeared like a bruise, and there was no crusting. The patient had otherwise no significant past medical history. A wide local excision was performed. Pathologic examination revealed a 10.0 cm, gray-white to purple, rubbery, nodular scalp mass with strands of hair extending from the surface.

The master list with the correct answer

  • Angiosarcoma
  • Kaposi sarcoma
  • Malignant melanoma
  • Spindle cell hemangioma
  • Spindle cell squamous cell carcinoma

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  • Appropriate diagnosis
  • Critique
  • References

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