A 13q‐ Syndrome with Extensive Intestinal Atresia

Abstract
The first autopsy case of a 13q‐ syndrome with extensive intestinal atresia, viz., absence of almost the entire jejunum and ileum, is reported. The absence of the mesentery and the histological properties of the intraperitoneal string‐structures composed of some muscle layers resembling the tunica muscularis of the alimentary tract suggest that one of the causative agents of the atresia may be abnormalities of mesenteric vessels.