English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Van Wyk-Grumbach syndrome is a rare disease characterized by precocious puberty associated with prolonged hypothyroidism and multicystic enlarged ovaries. A 9-year-old girl with Down syndrome visited our hospital for early menarche. At birth, she showed subclinical hypothyroidism [11.8 μg/dL of thyroxine (T4) and 6.05 μIU/mL of thyroid stimulating hormone (TSH)], but she had not been followed up in our clinic. On physical examination, pubertal Tanner stage was breast II and pubic hair I. Laboratory findings were as follows: 0.30 ng/dL of free T4, 81.30 μIU/mL of TSH, 0.1 IU/L of luteinizing hormone, and 6.35 IU/L of follicle-stimulating hormone. Her bone age was 6 years. Her pelvic sonogram revealed multiple cysts in both enlarged ovaries. She was diagnosed with Van Wyk-Grumbach syndrome. Levothyroxine treatment at a dose of 50 mg/m2/day was started. Regression of breast development was obtained after 2 months, and her vaginal bleeding did not recur.

Unusual presentations of a girl with Down syndrome: Van Wyk-Grumbach syndrome