CONGENITAL LESIONS
Compression of duodenum by superior mesenteric artery; duodenal ileusSuperior mesenteric artery compression of duodenum.Superior mesenteric artery compression of duodenum.Malrotation of small intestine with volvulus.Congenital band at ligament of Treitz.Annular pancreas.Congenital band at third portion of duodenum.Annular pancreas.
EXTRINSIC LESIONS
Aneurysm of aorta compressing duodenum (third part).Duodenal loop compressed by pancreatic pseudocyst.Cystic pancreas in the wall of the duodenum.Islet-cell adenoma of head of pancreas; dilated duodenal bulb.Carcinoma of the pancreas causing obstruction at ligament of Treitz.Carcinoma of pancreas.
INTRINSIC LESIONS
Stomal ulcer with adhesions obstructing the afferent loop (duodenum).Primary jejunal ulcer.Carcinoma of duodenum.Carcinoma of duodenum.Postbulbar ulcer.Postbulbar ulcer.Duodenitis (regional enteritis).Duodenitis (regional enteritis).
INTRINSIC LESIONS
Carcinoma of duodenum.Carcinoma of duodenum.Reticulum-cell sarcoma.Lymphosarcoma.Hodgkin's sarcoma.
MISCELLANEOUS
Lupus erythematosus with duodenal ileus, and one year later—perforated ulcer.Hematoma at