Gastric inverted @entity1127 (IHP) is a rare type of @entity1127 , and is characterized by downward growth of the @entity5072 mucosal components into the submucosa. To the best ofour knowledge, 16 gastric IHP cases have been described in the English literature, but the pathogenesis has not been established. We report the clinical and pathological findings of four gastric IHP cases. The lesions were mainly composed of @entity5072 with focal @entity384 . Pyloric type glands, endocrine cells, acinic cell metaplasia, and smooth muscle bundles were also seen as components of the polyp. Two cases (cases 1 and 4) coexisted with multifocal @entity3621 ( @entity3621 ) and @entity356 . Case 4 furthermore exhibited an intermediate form between IHP and @entity3621 . We suggest that IHP may be @entity3621 associated with exaggeratedly @entity5072 and metaplastic changes. In case 4, the coexisting @entity356 was mainly located in the submucosa, whilst the mucosal component was minimal. Five out of twenty reported gastric IHP cases, including our cases, coexisted with @entity356 . These facts would lead us to further investigate the relation between @entity356 .

Gastric inverted @entity1127 . Report of four cases and relation to XXXX .

@entity1127 :: ('MESH:D011127', 'Disease') :: ['hyperplastic polyp', 'gastric polyp'] @entity384 :: ('MESH:D002311', 'Disease') :: ['cystic dilatation'] @entity5072 :: ('MESH:D000796', 'Disease') :: ['hyperplastic', 'hyperplastic foveolar-type glands'] @entity3621 :: ('MESH:D005756', 'Disease') :: ['gastritis cystica profunda', 'GCP'] @entity356 :: ('MESH:D013274', 'Disease') :: ['gastric IHP and carcinoma', 'gastric adenocarcinoma', 'gastric carcinoma']
@entity3621 :: (MESH:D005756,Disease) :: ['gastritis cystica profunda']
