[Methodological peculiarities of the preliminary preparation of the thyroid gland for histochemical and electron microscopic study].

Cryostate sections of tissues preliminarily frozen in benzine cooled with liquid nitrogen are recommended for use in a histological for use in a histological and histoenzymological study of the thyroid gland. In electron microscopic study the thyroid gland should be fixed by injection of a 4% solution of glutaraldehyde on a 0,075M cacodilate buffer immediately into the thyroid parenchyma.