That there is a persistence of the proximal end of the yolk stalk to form a pouch at its point of union with the intestine in approximately 3 per cent of all individuals has been widely recognized. This pouch is usually referred to as "Meckel's diverticulum" and is a structure of clinical importance because of the rôle it may play in producing intestinal obstruction. Benign ulcerating processes in ectopic gastric mucosa have been described with relative frequency and have been incriminated occasionally as the source of intestinal hemorrhage. The development of malignant lesions in the ectopic gastric mucosa of a Meckel's diverticulum is extremely rare, and for this reason we felt that it was justifiable to report such an incident. So far as we have been able to determine, carcinoma of Meckel's diverticulum has been reported in a limited number of cases. According to Franke,1 Jores noted a primary
GRAY HK, KERNOHAN JW. MECKEL'S DIVERTICULUMASSOCIATED WITH INTUSSUSCEPTION AND ADENOCARCINOMA OF ECTOPIC GASTRIC MUCOSA: REPORT OF CASE. JAMA. 1937;108(18):1480–1483. doi:10.1001/jama.1937.02780180004002
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