Microdeletion of chromosome 7P syndrome ocular manifestations
M J Cartwright1, T S Hassan, B R Frueh
1University of Michigan, W. K. Kellogg Eye Center, Ann Arbor, Michigan, USA.
Insights
A rare chromosome 7P microdeletion syndrome caused congenital myogenic ptosis and systemic issues. Surgical correction of ptosis was successful, highlighting the importance of genetic evaluation for ocular abnormalities.
Area of Science:
- Genetics
- Ophthalmology
- Pediatrics
Background:
- Autosomal microdeletions are linked to various syndromes.
- Ocular adnexa abnormalities are common in these syndromes.
- Congenital myogenic ptosis can be a presenting sign.
Purpose of the Study:
- To report an uncommon case of chromosome 7P microdeletion.
- To emphasize the ophthalmologic findings in this genetic disorder.
- To discuss the management of congenital myogenic ptosis in this context.
Main Methods:
- Case report of a child with 7P microdeletion.
- Clinical examination and genetic evaluation.
- Surgical intervention for ptosis.
Main Results:
- The child presented with congenital myogenic ptosis.
- Multiple systemic abnormalities were identified.
- Successful surgical correction of ptosis using a fascia lata frontalis sling.
Conclusions:
- Chromosome 7P microdeletion is a rare cause of congenital myogenic ptosis.
- Early genetic evaluation is crucial for diagnosing systemic abnormalities.
- Surgical management of ptosis can be effective.
Abstract:
Several syndromes have been associated with microdeletions of the autosomes. These syndromes are diverse in their morphology and frequently manifest abnormalities of the ocular adnexa. A child with an uncommon microdeletion of the short arm of chromosome 7P presented initially with congenital myogenic ptosis. After multiple systemic abnormalities were found during a routine examination, the child was referred for genetic evaluation where the defects were incidentally found. The child responded well with a fascia lata frontalis sling. The genetic disorder is discussed with an emphasis on the ophthalmologic findings.
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