TOPOGRAPHIC ANATOMICAL BASIS OF ULTRASOUND EXAMINATION OF THYMUS GLAND IN PRENATAL ONTOGENESIS
We determined the normative ultrasound parameters of thymus. We examined 60 fetuses at term 20 – 32 weeks of pregnancy. Parameters of the thymus are increasing in direct proportion to the duration of pregnancy. We not found credible sexual anatomical differences in the size of the thymus. Equity structure of the thymus is clearly detected in three cases (5%). For the first time are presented the shortest distances from the center of the vertebral body to the thymus and to closely adjoining structures surrounding the gland.