Alopecic and aseptic nodule of the scalp in a girl

摘要

Abstract Alopecic and aseptic nodule of the scalp is a rare entity characterized by the presence of nodules or cysts with sterile punctured material and negative cultures accompanied by nonscarring alopecia in the scalp of young men. We describe a case in which an 11‐year‐old girl presented with a nodular, fluctuant, round lesion on the vertex with localized alopecia. High‐resolution ultrasound showed a hypoechoic lesion with increased flow on Doppler imaging and culture of the citrine‐yellowish material obtained by puncture was negative. The patient showed complete clinical response to treatment with topical indomethacin.