[Morphological changes in the human thymus in cancer].

Morphohistochemical and morphometric assays of the thymus from 40 persons, died as a result of cancer of various localizations, demonstrated a reliable diminishing in size of Hassell's corpuscles, the constant presence of blast thymocytes, an increased content of PAS-positive cells, reticuloepithelial dystrophy. Under lymphogenic metastasization and adrenal metastases the thymus may also increase its bulk. Some alternative changes in the thymus when involved by metastases are described.