ALOPECIA-ASSOCIATED PSEUDOCYST OF THE SCALP

By Gary M. White, MD

Alopecia-Associated Pseudocyst of the Scalp Alopecia overlying a soft nodule.


Alopecia-associated pseudocyst of the scalp is akin to cystic acne of the scalp that causes temporary alopecia.

Clinical

The acute onset of one or two inflammatory cysts on the scalp, usually on the vertex, in a young adult male is characteristic. The size is typically 2-4 cm. The hair overlying is lost. Cultures are sterile [JAAD Sept 2012].

Treatment

IL Kenalog 2.5 mg/cc monthly x 1-2 treatments should be performed. It may be helpful to start an acne antibiotic, e.g., doxycycline, minocycline. The hair usually regrows. In recurrent and/or resistant cases, isotretinoin may be needed. For persistent or chronic lesions, see dissecting cellulitis.

Additional Pictures

Alopecia-Associated Pseudocyst of the Scalp

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