[Priapism caused by cauda equina compression. Report of a case and review of the literature].

As a result from the mechanical irritation provoked on the sacral roots, the cauda equina compression syndrome can involve, as part of its symptomatic state, involuntary erections and mictional disorders which arise when standing and stretching the spine. In the eight cases of priapism from this cause reported in the international literature, surgical decompression has solved the clinical picture. We now present a new case with the peculiarity that, following unsuccessful surgical therapy, the infiltration of the compromised spinal roots has rendered excellent results.