Prevalence and Characterization of Thyroid Hemiagenesis in Japan: The Fukushima Health Management Survey.

ABSTRACT:

Background

Thyroid hemiagenesis is a rare congenital variant characterized by the lack of development of one thyroid lobe with no clinical manifestations.

Methods

This study was performed to determine the prevalence and characteristics of thyroid hemiagenesis in a normal Japanese population. This cross-sectional study was performed from October 9, 2011, to April 30, 2015. In total, 299,908 children and young adults in the Fukushima Health Management Survey were examined to determine the presence of thyroid agenesis or hemiagenesis. Thyroid width, thickness, and length were measured in 292,452 of these subjects.

Results

Thyroid agenesis was diagnosed in 13 subjects, and hemiagenesis was detected in 67 subjects (0.02%; 22.3/100,000 individuals). Although there was no si

SUBMITTER: Suzuki S 

PROVIDER: S-EPMC5564018 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature