Vascular Tumor on the Forehead of an HIV Patient

Below:  Solid red tumoration of 1 × 0.5 cm, located the forehead. Note the vascular appearance of the lesion

Below:   A biopsy of the lesion shows a vascular proliferation predominately on the upper dermis (H and E stain, ×20)

Below:  A closer view reveals that the lesion is composed of unusual thick vessels for this localization, showing a well developed muscular layer. All around there are some smaller vessels (H and E stain, ×10)

Cirsoid aneurysm is a small vascular proliferation characterized by small to medium-sized channels with features of arteries and veins, that present as small, blue or red asymptomatic papule. We report a case of a crisoid aneurysm on the forhead of an HIV patient that suggested a Kaposi sarcoma as a differential diagnosis.

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