A case of testicular nocardiosis and literature review.

A case of epididymo-orchitis due to Nocardia asteroides in a liver transplant recipient is reported. Nocardiosis is an extremely rare cause of epididymo-orchitis. Four other cases published in the English language medical literature are reviewed. All patients were immunocompromised, and other organs were affected simultaneously. Clinically the infection presented as a painful enlargement of the testicle with few inflammatory signs. Mortality was high (3/5), and in the two survivors long-term sulfonamide therapy was combined with orchiectomy. Nocardiosis should be considered in the diagnosis of epididymo-orchitis in the immunocompromised host.