SOLITARY ANGIOKERATOMA/ANGIOKERATOMA CIRCUMSCRIPTUM

By Gary M. White, MD

Solitary Angiokeratoma or Angiokeratoma Circumscriptum


This solitary angiokeratoma, aka angiokeratoma circumscriptum, is a localized angiokeratoma. It is usually solitary and develops in young adults, most commonly on the legs.   

Clinical

A solitary angiokeratoma ranges in size from 3-10 mm. Early on it is usually red, but in later years, it may become blue/purple and occasionally is mistaken for melanoma. Occasionally it will clot, resulting in a dark blue or black lesion. The patient will often seek medical attention for a new black spot, fearing melanoma.

Treatment

If necessary, a biopsy should be performed. Otherwise, no treatment is needed.

Additional Pictures

Solitary Angiokeratoma or Angiokeratoma Circumscriptum Solitary Angiokeratoma or Angiokeratoma Circumscriptum

This lesion was more flat initially and then became raised in adulthood.
Solitary Angiokeratoma or Angiokeratoma Circumscriptum

This one has a very dark color and mimics melanoma.
Solitary Angiokeratoma or Angiokeratoma Circumscriptum

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