BACKGROUND
One of the most common comorbid conditions of alopecia in adults s diseases of thyroid gland (TG). The relevant literature data on TG disorders in children are limited. The evaluation of thyroid status requires further researches according to the guidelines on alopecia areata.
OBJECTIVE
To study structural and functional characteristic of thyroid gland in children and adolescents with alopecia areata by data of laboratory and ultrasound examination.
MATERIAL AND METHODS
The study group consisted of 123 children with «alopecia» diagnosis (local, subtotal and total types), mean age was 10.8±3.4 years, comparison group included 250 children without alopecia aged 10.4±3.2 years. All children were tested to determine TSH, free T4, antibodies to TPO and TG, ultrasound of TG.
RESULTS
Alopecia in children and adolescents was diagnosed in equal proportion among females and males (p=0.471). The children of study group have a statistically significantly greater median of free T4, antibodies to TPO and TG with lower value of median of TSH (p<0.001–0.031) and without intergroup difference in the incidence of detected findings. At the same time, the increase in the TG volume, diffuse alterations of structure in the form of autoimmune thyroiditis, focal and minimal changes of TG structure, as well as the presence of lymph nodes near the lower pole of TG lobe were found statistically significantly more often during ultrasound. The correlation analysis showed statistically significant direct correlations between the mild and moderate intensity of baldness volume with the presence of an increase in volume, different types of changes in the TG structure and lymph nodes near the lower pole of TG lobe.
CONCLUSION
Morphometric disorders of TG by data of ultrasound without laboratory changes of thyroid status have been statistically significantly more often registered in children and adolescents with alopecia areata.