Cristián Fischer-LevanciniMatías GompertzGuglielmetti, AntonioAntonioGuglielmettiHéctor Opazo2025-12-072025-12-072017-08-1110.1159/0004791662-s2.0-85051329588https://cris-uv-2.scimago.es/handle/123456789/7577WOS:000430224200004Alopecic and aseptic nodules of the scalp, also named pseudocysts of the scalp, are a relatively new, little-known, and for sure underdiagnosed disease. It affects mostly young men and is characterized by a solitary or a few dome-shaped nodules accompanied by nonscarring alopecia, deep inflammatory infiltration in the skin biopsy specimen, and, in most cases, granulomas. It has a good response to doxycycline, intralesional corticosteroids, or drainage/aspiration of the lesion. We present a case report and a summary of the published cases.enacceso abiertoDermatologyarticle