14q11.2 microdeletion syndrome

14q11.2 microdeletion syndrome is a rare chromosomal disorder caused by a small deletion (microdeletion) on the long arm of chromosome 14 at the 11.2 band region. This condition is classified under chromosomal anomalies involving partial deletions of autosomes (ICD-10: Q93.5). The syndrome affects multiple body systems, most notably the central nervous system, and is characterized by intellectual disability of variable severity, developmental delay (particularly speech and language delay), and behavioral abnormalities. Affected individuals may also present with mild to moderate dysmorphic facial features, which can include a broad forehead, short philtrum, thin upper lip, and low-set ears. Additional clinical features may include hypotonia (reduced muscle tone), feeding difficulties in infancy, and growth abnormalities. Some patients have been reported to exhibit features on the autism spectrum or attention deficit disorders. Cardiac anomalies and other congenital malformations have been described in some cases but are not consistently present. The size of the deletion and the specific genes involved can vary between patients, which contributes to the phenotypic variability observed in this syndrome. There is currently no cure or targeted therapy for 14q11.2 microdeletion syndrome. Management is supportive and symptom-based, typically involving early intervention programs, speech and language therapy, occupational therapy, physical therapy, and special educational support. Behavioral interventions may be beneficial for those with behavioral difficulties. Regular monitoring by a multidisciplinary team including pediatricians, neurologists, and clinical geneticists is recommended to address the various clinical manifestations as they arise.

Common questions about 14q11.2 microdeletion syndrome