Angioleiomyoma

Angioleiomyoma
Other namesAngiomyoma, vascular leiomyoma
Angioleiomyoma, smooth muscles encircling dilatated blood vessels
SpecialtyOncology, rheumatology 
SymptomsPain (with or without tenderness), slow-growing benign mass in the subcutaneous region of the extremities.
Usual onsetCan occur at any age, with a peak in middle age.
CausesUnknown.
Differential diagnosisMany, including ganglion cyst, traumatic neuroma, schwannoma, eccrine spiradenoma, angiolipoma, fibroma and synovial sarcoma.
TreatmentSurgical excision.
FrequencyRare, more common in women.

Angioleiomyoma (vascular leiomyoma, angiomyoma) of the skin is thought to arise from vascular smooth muscle, and is generally acquired. Angioleiomyomas appear as small (<2 cm), firm, movable, slow growing subcutaneous nodules. Pain is a common symptom. They are most commonly seen on the extremities. The cause of angioleiomyoma is unknown.