Sex
Race
Frequency - International
Age
Frequency - United States
Males appear to be affected more frequently by targetoid hemosiderotic hemangioma than females (male-to-female ratio of 1.4:1). Episodically changing targetoid hemosiderotic hemangiomas have been described more frequently in females than in males.
No known racial associations exist, although THH has been reported only in whites.
Prevalence is unknown. Targetoid hemosiderotic hemangioma represents less than 0.1% of solitary pigmented lesions presenting to the Albany Medical College pigmented lesion clinic. From a dermatopathologic perspective, the Albany Medical College Dermatopathology service identified 33 cases out of more than 90,000 (0.1%) dermatopathologic accessions over a 3-year period.
Global incidence of targetoid hemosiderotic hemangioma is unknown but presumably is similar to that observed in the United States.
In targetoid hemosiderotic hemangioma patient age varies from 5-72 years, and most patients present during their 20s and 30s.
