Partial deletion of chromosome 7 syndrome

Partial deletion of chromosome 7 syndrome (also referred to as 7q partial monosomy, partial monosomy 7q, or partial deletion of the long arm of chromosome 7) encompasses a group of rare chromosomal disorders caused by the loss of a segment of chromosome 7. The clinical presentation varies considerably depending on the size and specific location of the deleted segment. Deletions can occur on either the short arm (7p) or the long arm (7q) of chromosome 7, and the resulting phenotype is determined by which genes are lost in the deleted region. Common clinical features may include intellectual disability, developmental delay, growth retardation, craniofacial dysmorphisms (such as microcephaly, hypertelorism, low-set ears, and micrognathia), skeletal anomalies, and congenital heart defects. Some patients may also present with genitourinary malformations, feeding difficulties in infancy, and hypotonia. The severity of symptoms ranges widely, from mild learning difficulties to severe multi-system involvement requiring complex medical management. There is no specific cure for partial deletion of chromosome 7 syndrome. Treatment is symptomatic and supportive, tailored to the individual's specific clinical manifestations. This may include early intervention programs, speech and occupational therapy, surgical correction of congenital anomalies (such as cardiac or skeletal defects), and ongoing developmental support. A multidisciplinary team approach involving geneticists, cardiologists, neurologists, and other specialists is typically recommended. Genetic counseling is important for affected families to understand recurrence risks and the nature of the chromosomal abnormality.

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