Torsion of the testicle.
D000328:Adult; D002648:Child; D003937:Diagnosis, Differential; D004823:Epididymitis / Q000175:diagnosis; D006801:Humans; D008297:Male; D013086:Spermatic Cord Torsion / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D013733:Testicular Diseases / Q000209:etiology*