[Torsion of an ectopic spleen as a cause of acute abdomen]. / Torsión de bazo errante como causa de abdomen agudo.

A case of torsion of an ectopic spleen is presented. Diagnosis was obtained by echography, CAT and arteriography. We review the cases reported in literature and discuss the diagnostic and therapeutic problems raised by this rare condition as the cause of acute abdomen as well as for the differential diagnosis of abdominal masses.