Mixed Adenocarcinoma and Squamous Cell Carcinoma of Duodenum: A Case Report and Review of the Literature

We report the first case of mixed adenocarcinoma and SCC occurring i n the third part of duodenum (D3). Our patient, a 64-year-old female with history of GERD, hypertension, and IDDM presented with 4 weeks of nausea, vomiting, and abdominal pain. Tomographic imaging of her abdomen demonstrated a distended stomach and a proximal duodenum with narrow caliber changes at the level of D3. An EGD revealed a tight stricture at D3 that could not be traversed. Stricture biopsies revealed duodenal mucosa with two small foci of SCC (positive for p63 and CK5/6) and adenocarcinoma (positive for CK7 and Moc31). Peritoneal metastases were detected on exploratory laparotomy, m aking the tumor surgically incurable. As she progressively declined and with worsening liver enzymes and general debility, she was not a candidate for chemotherapy and was eventually discharged on home hospice. Small bowel SCC/adenocarcinoma is an exceedingly uncommon cancer, making further case rep orts such as ours important to understand the nature of this entity and establish management guidelines.Case Rep Gastroenterol 2017;11:402 –410
Source: Case Reports in Gastroenterology - Category: Gastroenterology Source Type: research

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