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Case Report of Proliferative Peripheral Retinopathy in Two Familial Lissencephaly Infants with Miller-Dieker Syndrome
Omar Shoukfeh1, Alan B Richards1, Leonard A Prouty2
1Department of Ophthalmology, Louisiana State University Health Sciences Center, Shreveport, Louisiana, United States.
Abstract:
A complete ophthalmic examination is not routinely performed on infants with Miller-Dieker syndrome (MDS, chromosome 17p13.3 microdeletion). The authors present the cases of four cousins with MDS who also carried a 16p13.3 microduplication (not associated with Rubinstein-Taybi syndrome). Retinopathy of prematurity-like proliferative peripheral retinopathy (PPR) was detected in two male first cousins, but was not detected in the female half-cousins. PPR in the first infant resolved by 4 months, but the second infant's PPR progressed, requiring photocoagulation followed by lens-sparing vitrectomy. While ocular abnormalities are more prevalent and severe in other lissencephalopathies, the PPR in these MDS infants underscores the sight-saving potential of performing an ophthalmologic exam with early molecular testing for all lissencephaly infants.
Insights
Miller-Dieker syndrome (MDS) infants may develop retinopathy of prematurity-like proliferative peripheral retinopathy (PPR). Early ophthalmic exams and molecular testing are crucial for sight-saving interventions in lissencephaly patients.
Area of Science:
- Genetics
- Ophthalmology
- Developmental Biology
Background:
- Miller-Dieker syndrome (MDS) is a lissencephaly associated with a 17p13.3 microdeletion.
- Ophthalmic examinations are not standard for infants diagnosed with MDS.
- Co-occurring genetic anomalies can influence phenotypic presentation.
Observation:
- Four cousins with MDS and a 16p13.3 microduplication were studied.
- Two male cousins presented with retinopathy of prematurity-like proliferative peripheral retinopathy (PPR).
- PPR varied in severity, with one case requiring surgical intervention.
Findings:
- Proliferative peripheral retinopathy (PPR) was observed in male infants with MDS and 16p13.3 microduplication.
- The ocular findings highlight a potential link between specific genetic deletions/duplications and retinal abnormalities.
- Early detection of PPR is critical for timely management.
Implications:
- Routine ophthalmic screening in infants with MDS and other lissencephalies is recommended.
- Early molecular genetic testing alongside ophthalmologic exams can facilitate prompt diagnosis and treatment.
- This case series emphasizes the importance of comprehensive evaluations for syndromic conditions with potential ocular manifestations.
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