RARE FORM OF CANCER OF THYROID GLAND ON THE BACKGROUND OF AUTOIMMUNE THYROIDITIS.

Sclerosing mucoepidermoid carcinoma of the thyroid gland (SMCTG)is a recently recognized malignant neoplasm of the thyroid gland. For the first time about SMCTG was reported in 1991. This type of tumor may develop in connection with Hashimoto's thyroiditis (TX). There are two variants of mucoepidermoid carcinoma of the thyroid gland: the usual and sclerosing variants. SMCTG has recently been recognized by WHO as a separate disease. The paper presents a clinical case with MCLC in a 51-year-old woman who, according to the data of a fine needle aspiration biopsy (FNA)- follicular tumor on the background of TX. Extrafascial thyroidectomy was performed. The patient remained under observation for 10 months. The aim of the study was to demonstrate a clinical case of a patient after surgical treatment with a diagnosis of sclerosing mucoepidermoid carcinoma of the thyroid gland against the background of autoimmune thyroiditis. Description of the clinical case. We present a clinical case of a 51-year-old woman who was observed for 2 years for autoimmune thyroiditis with node. The patient had no symptoms or signs of compression. The level of thyroidstimulating hormone (TSH) was 15.8 (range 0.4-4.0), antibodies to peroxidase (AT-TPO)-150 Iu/ml. Scintigraphy of the thyroid gland revealed a dominant cold node (1.52 cm) in the right lobe of the gland. During the control ultrasound examination of the neck, negative dynamics was observed, a fine needle aspiration biopsy (FNA) of the thyroid node (thyroid gland) was performed a follicular tumor was obtained against the background of TH, which was the reason for timely treatment.