Ophthalmic abnormalities in Wieacker-Wolff syndrome

Area of Science:

• Genetics
• Neurology
• Developmental Biology

Background:

• Wieacker-Wolff syndrome is an X-linked genetic disorder characterized by in utero muscular weakness.
• It is caused by pathogenic variants in the ZC4H2 gene, leading to significant developmental challenges.
• Clinical manifestations include arthrogryposis congenita, facial weakness, and bulbar weakness.

Observation:

• This report details a case of a young female patient.
• The patient presented with clinical features consistent with Wieacker-Wolff syndrome.
• A de novo pathogenic deletion in the ZC4H2 gene was identified in this patient.

Findings:

• The identified ZC4H2 deletion confirms a genetic cause for the observed symptoms.
• Ocular manifestations such as ptosis, strabismus, and oculomotor apraxia are common in Wieacker-Wolff syndrome.
• These specific eye conditions affect 56% of individuals diagnosed with the syndrome.

Implications:

• This case expands the understanding of ZC4H2 gene deletions and their phenotypic spectrum.
• Accurate genetic diagnosis is crucial for managing Wieacker-Wolff syndrome.
• Further research into ZC4H2 variants can improve diagnostic strategies and therapeutic approaches.