Chromosome 6pter-p24 deletion syndrome is a condition caused by a deletion in the distal region of the short arm of chromosome 6, leading to a recognizable pattern of developmental and craniofacial differences. Individuals with this syndrome typically exhibit neurodevelopmental challenges such as mild intellectual disability and global developmental delay, along with a range of physical features including ocular abnormalities and distinctive facial dysmorphism. This condition follows a sporadic pattern, meaning it is not usually inherited from parents. It is considered very rare, affecting fewer than 1 in 1,000,000 people, and outcomes continue to be refined as clinical experience with the syndrome expands.

The clinical presentation of chromosome 6pter-p24 deletion syndrome is characterized by a combination of cognitive, craniofacial, and systemic features. Neurologically, affected individuals often experience global developmental delay and mild intellectual disability, with delays in speech and language development being a prominent early indicator. These cognitive challenges may be accompanied by difficulties in learning and communication, underscoring the importance of early intervention and supportive educational services. In addition to neurodevelopmental concerns, distinctive craniofacial features are common; many individuals exhibit low-set and posteriorly rotated ears, hypertelorism, and underdeveloped nasal alae, which contribute to a recognizable facial appearance. Ocular abnormalities, such as abnormal anterior chamber morphology and strabismus, as well as hearing impairment—both general and sensorineural—have been reported in a majority of cases. Cardiac features, including atrial septal defect, patent ductus arteriosus, and patent foramen ovale, may also be present, reflecting the multisystem involvement of this condition.

The precise genetic basis of chromosome 6pter-p24 deletion syndrome is under investigation, as no specific gene has been definitively implicated. The condition arises due to a deletion in the distal region of chromosome 6, which disrupts the normal development of multiple organ systems. Inheritance is described as sporadic, indicating that the deletion typically occurs as a new event rather than being passed from parent to child. This sporadic occurrence means that while an affected individual may experience the full spectrum of clinical features, there is generally a low risk that future siblings will be affected. Genetic counseling is recommended to help families understand the implications of this de novo event and to discuss any concerns regarding recurrence risks.