Abstract
RATIONALE: Synchronous double malignancies, including carcinoma of the ampulla of Vater and rectal carcinoma, are generally uncommon occurrences in the gastrointestinal tract. PATIENT CONCERNS: The present study report a case of a 37-year-old man who was incidentally found to suffer from carcinoma of the ampulla of Vater and rectal carcinoma. DIAGNOSES: The duodenoscopy was performed and revealed an ulcerated and bulky ampulla of Vater, the biopsy from which revealed a moderate-differentiated adenocarcinoma, A local hospital colonoscopy confirmed a tumor located in rectal 7 cm from the anal margin and biopsy-confirmed poorly differentiated adenocarcinoma. INTERVENTIONS: About such patient treatment, both open and laparoscopic surgery are restricted because of operation complexity, large injury, and poor cosmetic effect. surgery performed using Da Vinci robotic surgical system (DVSS). OUTCOMES: No evidence of recurrence or relapses was found in the first year after surgery. LESSONS: Although sporadic double malignancies are uncommon, they should be considered when evaluating cancer patients. Complex surgery performed by robotic surgery may became surgeon's preferred treatment modality.