If you don't remember your password, you can reset it by entering your email address and clicking the Reset Password button. You will then receive an email that contains a secure link for resetting your password
If the address matches a valid account an email will be sent to __email__ with instructions for resetting your password
Requests for reprints should be addressed to Junki Mizumoto, MD, Department of Medical Education Studies, International Research Center for Medical Education, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongou, Bunkyo-ku, Tokyo, 113-0033 Japan.
Department of Medical Education Studies, International Research Center for Medical Education, Graduate School of Medicine, The University of Tokyo, Japan
An 87-year-old Japanese male patient presented with abdominal distension and pain
lasting for half a day. On physical examination, 2 distended ridges running parallel
from upper right to lower left were seen in the abdomen (Figure, A). This pattern of distension looked like radiological “coffee bean sign.” The
diagnosis of sigmoid volvulus was soon suspected, which was confirmed by abdominal
computed tomography scan (Figure, B). Endoscopic reduction was performed, and the symptoms diminished.
Figure(A) An appearance of the patient's abdomen. Two wide ridges were running parallel. (B) A scout view of the abdominal computed tomography scan revealing coffee bean sign.
