XXXX associated with the syndrome of hypergastrinemic @entity4726 . A prospective analysis of 11 cases.

@entity1 @entity4726 @entity5 @entity1373 @entity787 @entity8243 @entity4303 @entity356
The prevalence of @entity356 in fundic @entity4726 is probably greater than previously recognized. To help elucidate the clinicopathology of this syndrome, we report a series of 11 @entity1 with solitary or multicentric @entity5 . In these @entity1 , basal @entity8243 levels and density of fundic mucosal endocrine cells were greater than that for @entity1 with uncomplicated fundic @entity4726 (p = 0.02 and p = 0.002, respectively). The @entity5 , of which the largest measured 30 mm, frequently showed characteristic endoscopic features. They were all situated in the fundic mucosa, which showed micronodular endocrine cell @entity1373 . Small, endoscopically evident tumorlets, or "early @entity4303 ," limited to the lamina propria were observed in some @entity1 . These lesions may represent intermediate stages between micronodules and invasive @entity4303 , all of which infiltrated at least into the muscularis mucosae of the gastric wall. Although some consistent characteristics features were noted, there were structural variations. The cells were argyrophil but nonargentaffin and did not stain with conventional mucus stains. They did not stain significantly for @entity787 ( @entity787 ). The secretory product of these @entity5 remains to be identified. Ultrastructurally, some @entity5 were mainly composed of enterochromaffinlike (ECL) cells, but in other @entity5 most of the cells could not be classified.
