Related Experiment Videos
Macular flecks in a 5-year-old boy with Alport's syndrome
M Kanamori1, S Hayasaka, N Furuse
1Department of Ophthalmology, Shimane Medical University, Japan.
Insights
This study investigates Alport syndrome in a Japanese family, identifying hematuria, renal failure, and hearing loss in affected members. Early signs in a young boy include hematuria and distinctive eye findings, highlighting the syndrome
Area of Science:
- Genetics
- Nephrology
- Ophthalmology
Background:
- Alport syndrome is a hereditary kidney disease characterized by progressive renal failure, often accompanied by hearing loss and ocular abnormalities.
- Genetic mutations in collagen genes (COL4A3, COL4A4, COL4A5) are the underlying cause of Alport syndrome.
- Early diagnosis and understanding of familial inheritance patterns are crucial for managing patients and providing genetic counseling.
Observation:
- A Japanese family presented with multiple members exhibiting symptoms consistent with Alport syndrome.
- Key clinical manifestations observed included hematuria, progressive renal failure, and sensorineural hearing disturbance.
- The proband, a 5-year-old boy, presented with hematuria and normal renal function, alongside characteristic yellow-white perimacular flecks in both eyes.
Findings:
- The family pedigree indicated a hereditary pattern of Alport syndrome.
- The proband's ocular findings (perimacular flecks) are a recognized, though not universal, sign of Alport syndrome.
- The co-occurrence of renal and auditory symptoms in affected family members aligns with typical Alport syndrome presentations.
Implications:
- This case highlights the importance of comprehensive clinical evaluation, including ophthalmological assessment, for diagnosing Alport syndrome.
- Understanding the phenotypic variability within families is essential for accurate diagnosis and prognosis.
- Further genetic analysis could elucidate specific mutations and their correlation with disease severity in this family.
Abstract:
We examined a Japanese family with Alport's syndrome; four members of family showed hematuria or renal failure and two had a hearing disturbance. The proband was a 5-year-old boy who had hematuria but normal renal function and yellow-white flecks in the perimacular region of both eyes.