Complete transposition of the viscera, or situs inversus totalis, in which the thoracic and abdominal viscera occupy a position the reverse of normal, occurs about once in 6,000 to 8,000 individuals. The common use of x-ray and physical examinations for the Army, schools, and industry have uncovered many cases and have established this incidence as reasonably accurate. Of considerably less frequent occurrence than situs inversus totalis is situs inversus partialis, involving a single viscus. Dextrocardia is the most common example of partial situs inversus. Of the abdominal organs, that portion of the intestinal tract which develops from the midgut is chiefly involved, for the foregut and hindgut are considered to be more stable and fixed in their positions. Dott (6) states that “error in location or attachment of the foregut situated within the abdomen (stomach and duodenum down to the biliary papilla) is excessively rare.” The present report concerns a case of inversion of the stomach alone. The majorit...