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Review
. 2007 Apr 21;13(15):2247-9.
doi: 10.3748/wjg.v13.i15.2247.

Multiple carcinoids in the duodenum, pancreas and stomach accompanied with type A gastritis: a case report

Affiliations
Review

Multiple carcinoids in the duodenum, pancreas and stomach accompanied with type A gastritis: a case report

Takeo Bamba et al. World J Gastroenterol. .

Abstract

We report a case of multiple duodenal, pancreatic, and gastric carcinoids. A 67-year old woman was admitted to our hospital for treatment of a duodenal carcinoid. Laboratory tests revealed that the patient was associated with macrocytic anemia and hypergastrinemia, and type A gastritis was shown by gastrofiberscopy. During surgery, another tumor was incidentally found in the head of the pancreas. The tumors in the duodenum and pancreas were completely excised by pancreatoduodenectomy and immunohistologically diagnosed as gastrin-and serotonin-producing carcinoids, respectively. Pathological examination revealed that in addition to the grossly found carcinoids, there were subclinical carcinoids, one of which was an endocrine cell micronest, located in the stomach and duodenum. The tumors in the duodenum, pancreas, and stomach showed different characteristics from one another morphologically and immunochemically. Although no definitive evidence has been obtained, some sort of genetic anomaly may have been involved in this case, and hypergastrinemia due to duodenal gastrinoma may induce multiple gastric carcinoids.

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Figures

Figure 1
Figure 1
Histological examination of each carcinoid in three organs. A: Duodenal carcinoid showing anastomotic ribbon-like formation in the interstitium with predominant blood vessels and only a small amount of connective tissue (HE, × 10); B: A palisade-like carcinoid in the pancreas, and a moderate amount of fibrous connective tissue observed in the interstitium (HE, × 20); C: Vesicular carcinoids in the stomach (arrow) (HE, × 10).
Figure 2
Figure 2
Imunohistochemical staining of carcinoids in the duodenum and pancreas (× 20). A: Gatrin immunostaining showing a quite positive carcinoid in the duodenum; B: Serotonin immunostaining showing a strongly positive carcinoid in the pancreas.

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