Robotic Whipple Procedure for an Ampullary Intramucosal Carcinoma
Charles C. Vining, MD, FACS, FSSO; Rushin D. Brahmbhatt, MD, FACS; Lawrence M. Knab, MD, FACS, FSSO
Penn State Health Milton S. Hershey Medical Center

A 76-year-old man presented to the emergency department with fatigue and chest pain. Initial laboratory evaluation revealed significant anemia with a hemoglobin level of 7.4 g/dL. He was transfused one unit of packed red blood cells and discharged with plans for outpatient gastroenterology follow-up. Upper endoscopy performed shortly thereafter demonstrated a tubulovillous adenoma without high-grade dysplasia at the level of the ampulla. Subsequent cross-sectional imaging with CT of the abdomen and pelvis identified an area of mass-like thickening in the descending duodenum as well as two suspicious peripancreatic lymph nodes. Endoscopic ultrasound with biopsy confirmed the presence of a uT3N1 duodenal mass. Histopathologic analysis revealed at least intramucosal adenocarcinoma arising within an adenoma.

The case was reviewed at a multidisciplinary tumor board, where consensus recommendation was for surgical resection. The patient subsequently underwent diagnostic laparoscopy, laparoscopic liver biopsy, robotic pancreaticoduodenectomy (Whipple procedure), and falciform ligament flap. Pathologic examination of the resected specimen revealed an 8.2-cm, grade 2, moderately differentiated invasive adenocarcinoma of intestinal type, arising from a duodenal adenoma. The tumor demonstrated direct invasion into the pancreas, peripancreatic soft tissues, and periduodenal tissue. All surgical resection margins were negative for carcinoma. A total of 22 lymph nodes were examined, of which 6 were positive for metastatic adenocarcinoma, consistent with a final pathologic stage of pT3b pN2 duodenal adenocarcinoma.

This case highlights the diagnostic and therapeutic challenges associated with duodenal adenocarcinoma, a rare and often late-presenting malignancy. It further demonstrates the role of a multidisciplinary approach in guiding management, as well as the feasibility of a minimally invasive robotic pancreaticoduodenectomy in selected patients.