Purpose: to study immunity condition of children on the first year of live with connective tissue dysplasia by assessment of the thymus ultrasound characteristics
Materials and Methods: 71 children with hip joint dysplasia and 38 children without dysplasia underwent thymus US. Standard examination based on R. Graf methodic was performed for dysplasia revealing. Thymus ultrasound was made on SA 8000 Live and ACCUVIX V10 (Medison) scanners using linear transducer (5-9 MHz, 6-12MHz). Thymus length, width and high, vascularity degree were estimated, its size and mass were calculated using coefficients.
Results: All thymus parameters of children with hip joint dysplasia are higher than parameters of children without dysplasia. Thymus mass of children with dysplasia exceeded its control value with 60% for all children and with 52- 68% for separate age groups. Thymus mass of 23 out 71children (32% ) with dysplasia was higher than 30 grams, meanwhile there were no children with mass of thymus higher than that, detected in the group without dysplasia. The higher were mass and size of thymus, the less was its echogenecity. Using Power doppler hypervascularity with chaotically arranged vessels was detected.
Conclusions: Thereby thymus mass and size of children with hip joint dysplasia surely exceed, thymus echostructure also has specific characteristics.