Distance Between Major And Minor Duodenal Papilla From Pylorus: A Cadaveric Study

Introduction: Without the knowledge of the normal pattern of the duct system and its variations, a radiologistcan’t interpret an Endoscopic Retrograde Cholangiopancreatography (ERCP) picture. So it becomes important tostudy the anatomy of pancreatic ducts, their relation to each other, to common bile duct and to duodenum in theavailable human cadavers. The present paper is about the study of distance between minor and major duodenalpapilla from pylorus which was carried out on 96 cadaveric specimens of human duodeno-pancreas. To visualiseand to see distance between minor and major duodenal papillae is necessary for the endoscopist who aims toperform the dilation, stenting, or papillotomy of the minor papilla.Materials and Methods: The study was conducted in 96 (64 male and 32 female) cadavers. Major and minorduodenal papillae were visualized through eosin dye installation in both common bile duct and the accessorypancreatic duct. The measurement of distance between the duodenal papillae and to pylorus was done in cm.Results: In the present work, the mean ± SD of the Distance between pylorus to MAP is 8.05 ± 1.71 cm, pylorus toMIP is 6.19 ± 1.49 cm, the major to minor duodenal papilla was on an average 2.02 ± 0.40 cm, these distanceswere more in males as compared to females. But the size of Orifice of MAP in specimens is 7.25 ± 1.25 mm morein females as compared to males.Conclusion: The length of the duct shows sexual dimorphism; the length being more in males than females.

Prevalence Of Patency Of Accessory Pancreatic Duct At Minor Papilla In South Indian Population: A Cadaveric Study

The accessory pancreatic duct is the smaller and less constant pancreatic duct in comparison with the mainpancreatic duct. We investigated the patency of the accessory pancreatic duct and its role in pancreaticpathophysiology. The present study was carried out in the department of Anatomy and forensic medicine, ACSRGovt. medical college, Nellore, Andhra Pradesh, India and in the department of Anatomy, RIMS, Ongole, AndhraPradesh, India. With 96 human cadavers (64 males and 32 females) with 30 to 80 years age group have beenstudied after obtained of ethical committee permission. The dissection method was followed to obtain specimenof pancreas along with C-loop of duodenum, papillae were identified ad dye was injected into APD to see itspatency at MIP. 93.75% specimens present MIP. The prevalence of patency of APD at MIP in population understudy was 38.89%; this is more in males was 43.33%, when compared to the females was 30% but this differencewas not significant statistically. It observed that out of 35 patent APD cases, 33 cases had inter papillarydistance either 2cm or more than 2cm. I t indicates 94.29% of patent APD cases had inter-papillary distancee”2cm. So there is strong relationship between APD patency and inter papillary distance in population understudy. The means inter-papillary distance in patent APD cases was 2.29 ± 0.2cm and non-patent APD cases was1.85 ± 0.25 cm. This difference was statistically significant.

Endoscopic Papillectomy for Synchronous Major and Minor Duodenal Papilla Neuroendocrine Tumors / 대한소화기학회지

Neuroendocrine tumor (NET) of the major duodenal papilla is a rare occurrence. However, that of the minor duodenal papilla is even rarer. To date, only a few cases have been reported. Herein, we present a rare case of NETs detected at the major and minor duodenal papilla synchronously, which were successfully treated with endoscopic papillectomy without procedure-related complication. To the best of our knowledge, this is the first report of this kind in the world. Photomicrograph of the biopsy specimen stained immunohistochemically for synaptophysin showed a positive reaction of tumor cells. All resection margins were negative. Further experience with more cases will be needed to establish the exact indication of endoscopic papillectomy for duodenal papillary NETs.

A cadaveric study of distance between the terminations of the hepato- pancreatic and accessory pancreatic ducts in the duodenal mucosa.

Objective: The present paper is about the study of distance between minor and major duodenal papillae which was carried out on 30 cadaveric specimens of human duodeno-pancreas. With introduction of ERCP, the pattern of pancreatic ductal system visualization has attained popularity. Without the knowledge of the normal pattern of the duct system and its variations, a radiologist can’t interpret an Endoscopic Retrograde Cholangio-Pancreatography (ERCP) picture. So it becomes important to study the anatomy of pancreatic ducts, their relation to each other, to common bile duct and to duodenum in the available human cadavers. To visualise and to see distance between minor and major duodenal papillae is necessary for the endoscopist who aims to perform the dilation, stenting, or papillotomy of the minor papilla. ERCP is proved to be “first line” therapeutic tool in the management of surgical, medical and pathological disorders involving the biliary tree and pancreatic duct. Methods: The study was conducted in thirty (20 male and 10 female) cadavers. Major and minor duodenal papillae were visualized through eosin dye installation in both common bile duct and the accessory pancreatic duct. The measurement of distance between the duodenal papillae was done in cm. Results: In the present work, the distance measured between the major and minor duodenal papilla was on an average 1.93+0.61 cm. in females and in males it was 2.05+0.31 cm. Conclusion: The length of the duct shows sexual dimorphism; the length being more in males than females.

A Case of a Neuroendocrine Carcinoma in the Minor Papilla / 대한소화기학회지

Neuroendocrine tumors are usually found in the ileum, appendix, rectum, colon and stomach. Ampullary neuroendocrine tumor is extremely rare and only a few cases of neuroendocrine carcinoma of the minor papilla have been reported. The preoperative diagnosis is very challenging because either asymptomatic or manifests as nonspecific abdominal pain. The tumor is relatively small and located at the deep mucosa and submucosa. Endoscopy with deep biopsy, endoscopic retrograde cholangiopancreatography and endoscopic ultrasonography are good diagnostic tools. The best therapeutic choice is surgery. We report an unusual case of a 55-year-old woman who underwent endoscopy as part of a regular health checkup and was diagnosed a neuroendocrine carcinoma in the minor papilla, which was successfully resected by pancreaticoduodenectomy.

Primary Adenocarcinoma of the Minor Duodenal Papilla

A 70-year-old man was admitted to our institution due to aggravation of blood-sugar level control and because an abdominal CT showed dilatation of the main pancreatic duct. Upper gastrointestinal endoscopy revealed a flat elevated tumor with central ulceration in the second portion of the duodenum. Subsequent duodenoscopy for a more detailed examination showed that the tumor had originated in the minor duodenal papilla. A biopsy specimen showed moderately differentiated adenocarcinoma. Endoscopic retrograde pancreatography via the major duodenal papilla revealed a slightly dilated main pancreatic duct and obstruction of the accessory pancreatic duct. Endoscopic ultrasonography showed a hypoechoic mass in the minor duodenal papilla with retention of the muscularis propria of the duodenum. These findings suggest that the tumor existed only to a limited extent in the minor duodenal papilla, and that the tumor did not infiltrate into the pancreas. For treatment, pylorus-preserving pancreatoduodenectomy was performed, and histological findings revealed a well-differentiated adenocarcinoma that originated in the minor duodenal papilla. Primary adenocarcinoma of the minor duodenal papilla is extremely rare. Our case is the first report of primary adenocarcinoma of the minor duodenal papilla at an early stage with no infiltration into muscularis propria of the duodenum and pancreas.