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ArticleTitle	Acute Cholecystitis Caused by a Cholesterol Polyp
AuthorList	Hiroshi Yoshida, Masahiko Onda, Takashi Tajiri, Yasuhiro Mamada, Nobuhiko Taniai, Yoshiaki Mizuguchi, Eiji Uchida, Yasuo Arima and Koho Akimaru
Affiliation	First Department of Surgery, Nippon Medical School
Language	EN
Volume	68
Issue	3
Year	2001
Page	259-261
Received	November 14, 2000
Accepted	December 7, 2000
Keywords	acute cholecystitis, cholesterol polyp, cholesterol stone, impaction
Abstract	A 39-year-old man hospitalized with upper abdominal pain had been found to have a 3mm polyp in the body of the gallbladder 3 years previously. Laboratory tests on admission showed mild liver dysfunction. Ultrasonography depicted a dilated gallbladder with increased wall thickness; the polyp could no longer be seen. Computed tomography with drip infusion cholangiography again showed a dilated gallbladder, and also stenosis of the distal cystic duct. The resected specimen obtained by laparoscopic cholecystectomy showed disappearance of the polyp from the body of the gallbladder. A cholesterol stone was incarcerated in the cystic duct, representing an impacted detached cholesterol polyp causing acute cholecystitis. Spontaneous detachment of a cholesterol polyp from the gallbladder mucosa, then, can result in acute cholecystitis.
Correspondence to	Hiroshi Yoshida, MD, First Department of Surgery, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan