Torsion of the gall-bladder.
D000006:Abdomen, Acute / Q000175:diagnosis*; D000328:Adult; D003937:Diagnosis, Differential; D005705:Gallbladder Diseases / Q000209:etiology* / Q000601:surgery*; D006801:Humans; D008297:Male; D014102:Torsion Abnormality / Q000175:diagnosis