[Acute Idiopathic Scrotal Oedema - Differential Diagnosis of the Acute Scrotum].

Acute idiopathic scrotal edema (AISE) is regarded as a rare cause of scrotal pain, swelling and erythema. Testicular torsion, torsion of the appendage, epididymitis, hernia and hydrocele are the most common causes of acute scrotum. The clinical symptoms of AISE are usually mild and the characteristic Doppler sonography findings make it a valuable differential diagnosis, which can help to avoid unnecessary exploration.