Adenocarcinoma of the Third and Fourth Portions of the Duodenum

Malignant Duodenal Lesion - Duodenal Tumor Vs Pancreatic Tumor - Semiological Radioimaging Characteristics

“…Although they are considered to be very rare, there are studies that have shown that primary duodenal tumors are found in 15-25 % of cases of malignant tumors of the small intestine [5][6][7]. In the study group, primary duodenal malignant tumors were found in a number of 25 cases representing 17 % of all malignancies studied; in terms of pathology were adenocarcinomas.…”

Adenosquamous Carcinoma of the Duodenum: a Rare Entity

“…[5][6][7][8][9] Only a few cases, as the present case have been reported to arise from the duodenum. [4,5] As per the WHO definition, ASC should consist of both adenocarcinoma and squamous cell carcinoma components in different quantity. There may be a transitional area between these two components, or these two components may be separated completely.…”

“…[1,2] They have also been reported in other parts of the gut as oesophagus, stomach and colon. A very few cases of small intestinal ASCs and that to mostly in the jejunum and ileum adenosquamous carcinomas have been reported in the literature [3][4][5][6]. We report a case of ASC of the second part of the duodenum in a 78-year-old man.…”

Primary duodenal neoplasms: A retrospective clinico-pathological analysis

“…However, in the present study 10/15 adenocarcinomas were seen in D1-D2 region. D3-D4 carcinomas have better prognosis as compared to D1-D2 carcinomas because the former behave like hind gut tumors and the latter as foregut tumors [9] . The relative frequency of duodenal stromal tumors is not known.…”