Adult acute idiopathic scrotal edema.

We report here a rare case of adult acute idiopathic scrotal edema (AISE). Its characteristics and management are the same for adults as for prepubertal boys. AISE typically affects prepubertal boys, with an acute onset of a relatively painless scrotal erythema and subcutaneous edema, which resolves spontaneously, without sequela, in 1 to 3 days. The erythema and swelling can also extend to the perineum, abdomen, or penis. Its diagnosis is primarily made by exclusion. Vital signs, urinalysis, urine and tissue culture, and white blood cell count are normal. Palpably normal scrotal contents on physical examination and thickened scrotal wall and normal testis arterial flow on scrotal ultrasound with color flow Doppler further confirm the diagnosis. Differentiating AISE from a scrotal surgical emergency is essential in order to avoid unnecessary exploration.