Морфология сосудистого компонента миксом сердца

Abstract

Cardiac myxomas are the most well-known cardiac tumours to date, yet the morphology of their vascular component has not been widely depicted in literature. Through our study we aim to fully characterize the features of vascular changes associated with cardiac myxomas and to determine their frequency and differential diagnostic implications, as well as compare the peculiarities of vascular changes in cardiac myxomas with those in Merkel Cell Carcinoma (MCC). MCC was chosen for its prominent vascular changes, which have not been very well studied until recently. The following 3 types are the most characteristic of cardiac myxomas: pericyte hyperplasia, pyogenic granuloma–like pattern and peliosis–like pattern. In terms of prominent vascular changes, cardiac myxomas can be considered similar to Merkel Cell Carcinoma. The use of the classification of such a phenomenon in MCC can improve and simplify the diagnosis of myxomas