Alopecia-Associated Pseudocyst of the Scalp

August 2012 in “ Journal of the American Academy of Dermatology ”

Eric L. Eisenberg

alopecia pseudocyst scalp hair loss intralesional triamcinolone acetonide erythematous cystic swellings triamcinolone

TLDR A rare scalp condition causing hair loss and cysts in young men can be treated effectively with a specific steroid injection.

The document described alopecia-associated pseudocyst of the scalp, a rare condition observed in 11 cases over 10 years, primarily affecting young healthy men with tender, erythematous cystic swellings and hair loss. Treatment with intralesional triamcinolone acetonide (2.5 mg/mL) led to rapid resolution and hair regrowth within 2 months without scarring. The condition tended to relapse but responded well to treatment, suggesting it might be more common and misdiagnosed as other scalp conditions.

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