apudoma/amyloid

A peculiar mammary gland tumour is described. Histological structures typical for apudomas of various level of differentiation were combined in the tumour. Apart from highly differentiated carcinoid-like areas, there were zones of a small-cell carcinoma corresponding to a poorly differentiated

A bronchial P cell carcinoid, which was negative for all hormones immunocyto chemically tested, showed a globular intracytoplasmic inclusion in almost every cell. The inclusions were not clearly distinguishable using the haematoxylin- eosin- safran procedure; they were best demonstrated with the

In a series of 79 cases of primary esophageal carcinoma resected at The Center for Adult Diseases, Osaka, there were six tumors with specific histopathologic features valid for the diagnosis of argyrophil cell carcinoma. Of the 6 tumors, 3 were studied electron microscopically and assay for ACTH

Seven ovarian tumours (3 mature teratomas, 2 strumas with malignancy 2 strumal carcinoids) have been examined histologically, hystochemically and electron-microscopically. It is shown that the cell composition of the strumal teratoma tissue is very similar to that of the ectopic thyroid. The