A newly recognized syndrome of severe growth deficiency, microcephaly, intellectual disability, and characteristic...

Area of Science:

• Genetics
• Pediatrics
• Medical Genetics

Background:

• Severe short stature and intellectual disability can stem from various rare genetic syndromes.
• Identifying novel genetic disorders is crucial for understanding human development and disease.

Observation:

• Two sisters presented with proportionate severe short stature, poor weight gain, and microcephaly.
• Additional features included distinctive facial features, syndactyly of the toes, high myopia, and severe intellectual disability.
• Transient hepatosplenomegaly and low cholesterol levels were noted in infancy, later normalizing.

Findings:

• Extensive metabolic, radiological, and genetic investigations revealed no definitive abnormalities.
• Cholesterol metabolism and transport appeared normal, ruling out known metabolic disorders.
• The clinical presentation and normal investigations suggest a previously unrecognized autosomal recessive multiple congenital anomaly-intellectual disability syndrome.

Implications:

• This case expands the spectrum of genetic syndromes causing severe growth retardation and intellectual disability.
• Further research is needed to identify the specific gene(s) responsible for this novel syndrome.
• Accurate diagnosis is essential for genetic counseling and understanding the long-term prognosis.