LIVER METASTASIS AND BONE METASTASIS IN THREE CASES OF RECTAL CARCINOID

In Japan, rectal carcinoid has so far been regarded as a disease of comparatively low incidence and as benign in most cases. Up to 1982, however, 25 cases of metastatic carcinoid had been reported.During the past 10 years, we have experienced 7 cases of rectal carcinoid, in 3 of which liver and bone metastasis wea present.Neuron-specific enolase stain was positive in the 6 cases of rectal carcinoid examined by the enzyme-labeled antibody method. We discuss these 7 cases with additional discussion of the rectal carcinoid-producing mother cell.