Torsion of the spermatic cord is now a well established clinical entity, but the individual practitioner meets it so infrequently that in a large proportion of cases it goes unrecognized. The first authentic report was by Delarsiavue in 1840. In 1936 Abeshouse1was able to find 350 instances reported in the literature, which he summarized in a splendid and exhaustive article. The largest individual series were eighteen cases reported by Terazzi and nine cases by O'Conor.2To date twelve instances of this condition have come under my observation, two of which have previously been reported. Although the condition is uncommon, its recognition is of considerable importance, for failure of recognition may result in a testicular atrophy which might have been prevented, and this assumes greater importance in view of the fact that in twenty-four of Abeshouse's 350 cases the condition was bilateral. It is undoubtedly true that in