[22q11.2 microdeletion].

Area of Science:

• Neurogenetics
• Developmental Biology

Background:

• 22q11.2 deletion syndrome (22q11DS) is a common neurogenetic disorder with heterogeneous cognitive and behavioral phenotypes.
• Late diagnosis is frequent due to varied symptom presentation, though severe cardiac, respiratory, or speech issues aid early detection.
• Cognitive profiles range from borderline IQ to mild intellectual disability, often with a verbal-visual dissociation favoring verbal skills.

Purpose of the Study:

• To highlight the heterogeneity of 22q11DS phenotypes.
• To emphasize the importance of early detection and integrated management strategies.
• To correlate neuroimaging findings with cognitive impairments.

Main Methods:

• Review of existing literature on 22q11DS.
• Analysis of cognitive and behavioral characteristics.
• Summary of neuroimaging study findings.

Main Results:

• 22q11DS exhibits a wide spectrum of cognitive abilities, with learning difficulties common and verbal skills often exceeding visuospatial and abstract reasoning.
• Psychiatric comorbidities, including social withdrawal and early-onset psychosis, are frequent.
• Neuroimaging reveals distinct structural alterations correlating with cognitive deficits.

Conclusions:

• Integrated, periodic clinical evaluations addressing medical, speech, psychiatric, and academic needs are crucial for managing 22q11DS.
• Understanding the neurobiological underpinnings is key to improving patient outcomes.
• Early and accurate diagnosis improves the potential for effective intervention.