A brief selection of bibliographical material was made on the subject of gastroduodenal mioepithelial hamartomas, bearing in mind Prof. Juan Francisco Cassinelli'steaching which associates heterotopic pancreas. Brunnerian adenomas and their intermediate forms. Three cases are described: two localized submucous gastric lesions and one double gastric and duodenal lesion. -The fundamental lesion is a small tumorlike nodule composed of ectopic focus of glandular and ductal tissue in a smooth muscle stroma, resulting from an undetermined development anomaly. Many cases are asymptomatic and the clinical symptoms are variable. X-Rays usually show a small ovoidal lacunar appearance,often with central umbilication. The treatment recommended is local removal, under histopathological peroperative control.

Se reali.za una limitada rev1s1on bibliográfica sobre los Hamart.omas Mioepit3liales gastroduodenales, con el concepto aprendido del Prof. JuanFrancisco Cassinelli que un.fica los páncreas heterotópicos, los adenomas brunnerianos y las f,ormas intermedias. Se presentan 3 casos dem