[Carcinoid tumor of the cecum--1st description in Bulgaria].

The authors describe, for the first time in Bulgarian medical literature, a carcinoid of cecum in an 77-year old woman, with a lethal end. The tumour was with the size--6 X 7 cm, with infiltrative growth in the intestinal wall and massive metastases in liver. Grimelius staining revealed the presence of secretory argentophilic granules in the tumour cells. The main tumour, light- and electrone-microscopically, is represented by conditioned non-differentiated and differentiated cellular elements, which in addition to the usual oragellae contain also granules of neurosecretory type.