Acute idiopathic scrotal edema in the adult: A case report.

Acute idiopathic scrotal edema (AISE) is a self-limiting disease of uncertain etiology, more common in children. It is characterized by the rapid onset and progression of edema and erythema of the scrotal skin and dartos. Although AISE does not involve the underlying testis and paratesticular structures, on initial presentation it is challenging to differentiate from other causes of acute scrotum. It is a difficult but important diagnosis, as correct identification avoids unnecessary surgical scrotal exploration. We discuss a case of AISE in a 23-year-old patient, and highlight the clinical and sonographic features which, in retrospect, were indicative of the diagnosis.