At the midtransverse colon, a crescent-shaped soft tissue mass was found. The intussusceptum could be reduced to the cecum, but no further. The patient was taken to the OR for surgical reduction. A second mass is seen at the base of the appendix measuring 4 by 3 by 1 cm. Tumor infiltrates the lamina propria, muscularis and reaches the serosa without obvious infiltration of the mesentery.
Surgical margins are free of tumor.
Patient age is on the average 3 months to 3 years with a 2 to 1 male predominance. It also can have the appearance of a pseudo-kidney in the longitudinal plane. CT is not practical as a screen and plain films are VERY rarely diagnostic. Enema reduction should be attempted under fluoroscopy with barium, water-soluable contrast or, our medium of the 90's , air. Reduction may also be achieved under ultrasound guidance with water, or some other aqueous solution.