[Combination of macro-TSH and macroprolactinemia phenomena in a patient with autoimmune thyroiditis and vitiligo].

Laboratory diagnostic methods are the main tools in the practice of a doctor of any specialty, including an endocrinologist. Factors were identified that could change the concentration of the biologically active fraction of the test substance, subsequently complicating the interpretation of laboratory results and making the right clinical decision. The literature describes a variety of circulating autoantibodies involved in binding to pituitary hormones (prolactin (PRL), thyroid-stimulating hormone (TSH), growth hormone, luteinizing, follicle-stimulating, and adrenocorticotropic hormones), hypothalamus (vasopressin and oxytocin), pancreas (insulin and glucagon) , parathyroid glands (parathyroid hormone), as well as with thyroid hormones.

[Features of true gynecomastia in adult males].

Background: In recent years, the incidence of gynecomastia in adult men has increased significantly. It is of interest to study the specific features of the disease in these patients.

Aim: To identify the main characteristics of acute gynecomastia in adult men.

[Determination of prolactin reference intervals in different age groups].

Background: Clinical diagnostic laboratories (CDL) have at their disposal various automated systems for the measurement of biochemical parameters and markers such as prolactin. Each of the test systems manufactures offers its own alternate design of the method, which makes standardization difficult. In endocrinological practice, the problem of result discrepancies often arises.

[Calcitonin measurement in fine-needle washout fluids in detecting medullary thyroid cancer].

Background: The diagnostic value of calcitonin measurement in fine-needle aspiration biopsy wash-out fluid is a promising tool in the diagnosis of medullary thyroid cancer.

Aims: We assessed the potential usefulness and the diagnostic significance of Ct-FNAB alone in comparison with cytology in the diagnosis and localization of primary or metastatic MTC.

Materials And Methods: For this purpose, we retrospectively examined data from 67 patients with suspicious thyroid nodules and/or lymph nodes who ultimately underwent surgical treatment at the Endocrinology Research Centre in 2015-2020.

Analytical platforms Vitros ECi 3600 and Cobas 6000: comparative analysis of prolactin measurement.

Prolactin is a polypeptide hormone secreted by the lactotrophic cells of the anterior pituitary gland and has a wide range of biological effects in the human body. Accurate measurements of prolactin concentration are essential in obtaining biochemical data to support clinical decisions in the diagnosis, treatment and prevention of diseases of the pituitary gland, reproductive, immune and other body systems. The aim of our study is to carry out a comparative analysis of the serum prolactin measurement determined by the two analytical platforms Vitros ECi 3600 (Ortho-Clinical Diagnostics) and Cobas 6000 (Roche).