The results of an endoscopic bioptic study of 16 cases of primary gastric malignant lymphoma are reported. Endoscopic observation suggested a diagnosis of malignant lymphoma in 50% of the cases, while directed biopsy gave a similar diagnosis in 75% of the cases. A correlation of the endoscopic and the histologic results gave a diagnostic reliability of 87.5% (14 of 16 cases). In order to obtain also in this group of neoplasms the diagnostic positivity already obtained in the epithelial forms, both improvement in the bioptic sampling technique and a better knowledge of the endoscopic morphology of the lesions must be achieved.
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