[Cyto- and histological comparisons in chemodectomas of the neck].

Cyto-histological correlations in cases of chemodectomas of the neck were made. The patients were divided into 3 groups; with benign (8), malignized (8) and malignant (14 tumors). Decreased vascular component, solidization, marked cellular and nuclear polymorphism taken together are signs of morphological malignizaiton of the tumor. In most patients, however, no relationship between morphological characteristics of chemodectomas and their clinical course was established. Clinico-morphological correlations indicate that cellular and tissue changes are not the only signs of malignancy of a tumor.