[Comparative morphological characteristics of adenoacanthoma of different localization].

A morphological analysis of 40 observations on adeno-acanthomas of different localizations (oesophagus, uterus, larynx, pharynx) is presented. It was established that adeno-acanthoma, which is characterized by two-component composition, distinguished itself by certain variability of the structure. The plano-epithelial component present in the tumour of the glandular structures may be of a different degree of maturation, may have the structure of planocellular cancer, or may have no signs of atypia. Basing on their own findings and data reported in the literature the authors come to the conclusion that adeno-acanthomas depending on their structures should be referred to differently: adeno-acanthoma and adenosquamous cancer. It is possible that morphological differences in the histological structure of adeno-acanthoma are of significance in the clinical course of the disease.