A 35-year-old man presented with recurrent abdominal pain due to chronic alcoholic
pancreatitis. Magnetic resonance cholangiopancreatography showed a dilated tortuous
main pancreatic duct with incomplete pancreas divisum.
Endoscopic retrograde cholangiopancreatography (ERCP) was carried out and the major
papilla was cannulated with a cannulatome and 0.035-inch guidewire. After contrast
opacification of the main pancreatic duct, when deep cannulation was attempted, the
guidewire became coiled in the direction of the accessory duct ([Fig. 1]). Cannulation via the minor papilla was therefore tried, but it was unsuccessful.
The cannulatome with the guidewire was then used for cannulation via the major papilla;
the guidewire was negotiated into the minor pancreatic duct and through the minor
papilla, followed by the cannulatome over the guidewire. Reverse sphincterotomy of
the minor papilla was performed and the cannulatome and guidewire were removed ([Fig. 2], [Video 1]). This was followed by deep pancreatic duct cannulation via the minor papilla, which
showed a dilated, tortuous duct with ectatic side-branches. A 7-Fr, 10-cm single-pigtail
stent was deployed into the pancreatic duct across the minor papilla ([Fig. 3]). The patient improved symptomatically and was asymptomatic at the 6 month follow-up.
Fig. 1 Fluoroscopic image showing coiling of the guidewire in the direction of the accessory
duct during cannulation for endoscopic retrograde cholangiopancreaticography in a
35-year-old man with incomplete pancreas divisum.
Fig. 2 Reverse sphincterotomy of the minor papilla.
Video 1: Reverse sphincterotomy of the minor papilla in a 35-year-old man with incomplete
pancreas divisum.
Fig. 3 The pancreatic duct stent in situ: fluoroscopic image.
Minor papilla sphincterotomy is a routinely performed endoscopic therapy for pancreatitis
associated with pancreas divisum. It was first described by Cotton in 1980 [1]. Pancreas divisum is a common anatomical variant of the pancreatic duct. Warshaw
et al. proposed its anatomical classification into three types: (i) classic pancreas
divisum; (ii) pancreas divisum with an absent ventral duct; and (iii) incomplete or
partial pancreas divisum (the least common type) [2]. Endoscopic sphincterotomy of the minor papilla is an effective treatment in patients
with pancreas divisum and various techniques have been described, for example standard
pull-type, needle-knife, and wire-assisted access methods [3]. Reverse sphincterotomy is a very rarely used sphincterotomy technique that can
be used effectively to treat acute recurrent pancreatitis or chronic pancreatitis
associated with partial pancreas divisum.
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