Intellectual disability-balding-patella luxation-acromicria syndrome

Intellectual disability-balding-patella luxation-acromicria syndrome, also known as Biemond syndrome type II, is an extremely rare genetic condition characterized by a distinctive combination of features affecting multiple body systems. The syndrome was first described by Biemond and is defined by intellectual disability (ranging from mild to moderate), premature balding or alopecia, recurrent dislocation (luxation) of the patella (kneecap), and acromicria — a condition in which the hands and feet are abnormally small. Additional features may include short stature and obesity. The skeletal system is notably affected, with the patellar instability causing knee problems and the small extremities reflecting underlying skeletal dysplasia. Neurological involvement manifests primarily as cognitive impairment. The condition has been reported in very few families in the medical literature, making it one of the rarest described syndromes. There is no specific cure or targeted therapy for this syndrome. Management is supportive and symptomatic, potentially including special education services for intellectual disability, orthopedic interventions for patellar luxation, and monitoring of growth and development. Genetic counseling is recommended for affected families.

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