Related Experiment Video
Updated: May 4, 2026

Application of Robot-assisted Pancreaticobiliary Junction Resection in Benign Duodenal Tumors
Published on: December 20, 2024
[A case of primary undifferentiated carcinoma of the duodenum]
Mitsunobu Takeda1, Kazuhiko Hashimoto, Shigekazu Yokoyama
1Dept. of Surgery, Yao Municipal Hospital.
Abstract:
We report a case of undifferentiated carcinoma of the duodenum. A 40-year-old man was referred to our hospital as he experienced upper abdominal pain that had persisted for half a year. Gastrointestinal endoscopy revealed a semicircular tumor in the duodenum. Enhanced computed tomography( CT) revealed that the tumor had not invaded the adjacent tissues, and lymph node metastases were not detected. Biopsy indicated a diagnosis of Group V cancer. Because the tumor was diagnosed as primary duodenal cancer, pancreatoduodenectomy and lymphadenectomy were performed. Histopathological examination revealed the presence of variant cells with irregular cores; we then diagnosed the tumor as undifferentiated cancer of the duodenum. No lymph node metastasis was detected microscopically. This patient has remained well without recurrence for 17 months since the operation. Undifferentiated carcinoma of the duodenum is rare, as only 9 cases have been reported in the Japanese literature.
More Related Videos
10:10Robotic Duodenum-preserving Total Pancreatic Head Resection for Intraductal Papillary Mucinous Neoplasms
Published on: April 17, 2026
03:34Laparoscopic Duodenum-Preserving Pancreatic Head Resection via Inferior Infracolic Approach: A Surgical Approach for Benign Lesions
Published on: February 9, 2024
Related Concept Videos
Peptic Ulcer Disease III: Clinical Manifestations and Complications
Peptic Ulcer Disease III: Clinical Manifestations and Diagnostic Studies
Few clinical manifestations differentiate gastric ulcers from duodenal ulcers. Distinctions in the location, timing, and pain relief are crucial for healthcare providers in differentiating between gastric and duodenal ulcers during clinical assessments.
Peptic Ulcer Disease I: Introduction
An acute ulcer, marked by superficial erosion and minimal inflammation, swiftly resolves upon identifying and addressing the underlying cause. In contrast, a chronic ulcer persists, potentially eroding through the muscular wall and forming fibrous tissue.
Peptic ulcers can also be...
Peptic Ulcer Disease I: Introduction
Peptic Ulcer
Barrett Esophagus-I: Introduction
This constant acid exposure transforms the esophagus's pink mucosal lining (stratified squamous epithelium) into a type of lining more...