Priapism: an unusual complication of parotitis without orchitis.

A 10-year-old white boy is described in whom priapism developed as a complication of parotitis without orchitis. Medical study failed to reveal any other etiology. The syndrome was assumed to be related to a mumps virus. Treatment by corpora cavernosa-spongiosum shunt relieved the acute symptoms as well as preserved the patient's ability to have an erection.