TY - JOUR
T1 - Adenomyomatous hyperplasia of the common bile duct
T2 - Report of a case
AU - Iwaki, Kentaro
AU - Shibata, Kohei
AU - Ohta, Masayuki
AU - Endo, Yuichi
AU - Uchida, Hiroki
AU - Tominaga, Masayuki
AU - Okunaga, Ryoki
AU - Kai, Seiichiro
AU - Kitano, Seigo
PY - 2008/1
Y1 - 2008/1
N2 - Adenomyomatous hyperplasia is most commonly found in the stomach, gallbladder, duodenum, and jejunum, while it is rarely found in the extrahepatic bile duct. A 62-year-old woman was referred to our institution with a diagnosis of common bile duct (CBD) stenosis which had been detected by endoscopic retrograde cholangiopancreatography (ERCP). Abdominal computed tomography with contrast medium revealed a thickening of the wall of the lower CBD, and this lesion was weakly enhanced by contrast medium in the arterial phase. ERCP revealed a 15-mm-long stenosis of the lower CBD, but no malignant cells were detected by either bile cytology or brush cytology. Because CBD cancer could not be ruled out, pylorus-preserving pancreatoduodenectomy was performed. Histopathologically, multiple hyperplastic glands without cellular atypia were present in the lower CBD wall. An immunohistochemical study showed fibroblasts with positive staining for α-smooth muscle actin surrounding the glands. The lesion was diagnosed to be adenomyomatous hyperplasia of the CBD. When a diagnosis of adenomyomatous hyperplasia of the CBD is difficult to make both preoperatively and intraoperatively, then a radical surgical procedure, such as a pancreatoduodenectomy, may be an effective treatment alternative.
AB - Adenomyomatous hyperplasia is most commonly found in the stomach, gallbladder, duodenum, and jejunum, while it is rarely found in the extrahepatic bile duct. A 62-year-old woman was referred to our institution with a diagnosis of common bile duct (CBD) stenosis which had been detected by endoscopic retrograde cholangiopancreatography (ERCP). Abdominal computed tomography with contrast medium revealed a thickening of the wall of the lower CBD, and this lesion was weakly enhanced by contrast medium in the arterial phase. ERCP revealed a 15-mm-long stenosis of the lower CBD, but no malignant cells were detected by either bile cytology or brush cytology. Because CBD cancer could not be ruled out, pylorus-preserving pancreatoduodenectomy was performed. Histopathologically, multiple hyperplastic glands without cellular atypia were present in the lower CBD wall. An immunohistochemical study showed fibroblasts with positive staining for α-smooth muscle actin surrounding the glands. The lesion was diagnosed to be adenomyomatous hyperplasia of the CBD. When a diagnosis of adenomyomatous hyperplasia of the CBD is difficult to make both preoperatively and intraoperatively, then a radical surgical procedure, such as a pancreatoduodenectomy, may be an effective treatment alternative.
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U2 - 10.1007/s00595-007-3558-9
DO - 10.1007/s00595-007-3558-9
M3 - Article
C2 - 18085373
AN - SCOPUS:37349087887
VL - 38
SP - 85
EP - 89
JO - Surgery Today
JF - Surgery Today
SN - 0941-1291
IS - 1
ER -