A further case of hyperrotation of the colon.

The anomalies resulting from abnormal rotation of the midgut loop are briefly reviewed. A case of hyperrotation with cecal ascent is described--only the second such case reported, so far as the authors are aware. The liver in this subject was larger than average, and the suggestion is made that the presence of a large liver combined with exuberant growth of the ascending colon may explain the hyperrotation. Although this anomaly is clearly very rare and not in itself pathological, the highly unusual position of the cecum and much of the ascending colon in these cases may cause problems in the diagnosis of appendicitis or during laparatomy.