This 63-year-old man developed chronic slowly progressive purple nodules on the right arm 3 months ago. A skin biopsy shows a normal epidermis overlying masses of back to back vascular spaces with foci of spindle cells. Extravasated red blood cells and hemosiderin deposits are also seen. No atypical mitoses were detected.
CD 34 and CD 31 were positive
Description
grouped purple 0.5-3 cm nodules tumors some with overlying ulceration and crusts
Histopathology
The sections showed normal epidermis overlying masses of vascular spaces having the characteristic back to back appearance with foci of spindle cells. Extravasated red blood cells and haemosiderin deposits are also seen. No atypical mitoses were detected.
CD 34 and CD 31 were positive
