abnormal stomach mucosa morphology stomach mucosa hyperplasia 2011-02-09T12:04:40Z MP:0010799 MPheno.ontology csmith overdevelopment or increased size, usually due to an increase in the number of cells, of the mucous layer of the stomach wall which contains the gastric pits and glands, and consists of epithelium, lamina propria, and the muscularis mucosae