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

We report on two siblings with classic simple virilizing 21-hydroxylase deficiency whose neonatal screening for serum 17alpha-hydroxyprogesterone (17-OHP) gave normal results. The proband, a girl with clitoromegaly whose screening 17-OHP value had been 9.2 ng/ml, was diagnosed at the age of 6 months, and her elder brother with the initial screening level of 15.7 ng/ml was diagnosed at the age of 6 years due to precocious puberty. Although the occurrence of false-negative cases is extremely rare, it can happen in a simple virilizing form of 21-hydroxylase deficiency. This experience informs that normal results for neonatal screening cannot be an excuse for not evaluating siblings of the proband with congenital adrenal hyperplasia.

False Negatives at Neonatal Screening for Congenital Adrenal Hyperplasia in Two Siblings with 21 -Hydroxylase Deficiency.