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SynopsisCodesDifferential Diagnosis & PitfallsBest TestsReferences
Alport syndrome
Other Resources UpToDate PubMed

Alport syndrome

Contributors: Catherine Moore MD
Other Resources UpToDate PubMed

Synopsis

Genetic disorder of the basement membrane, resulting from mutations in genes that encode the alpha- 3, alpha-4, and alpha-5 chains of type IV collagen. The resulting structural basement membrane abnormalities lead to progressive dysfunction of the glomerular filtration barrier, sensorineural hearing loss, and ocular defects. The most common mutation is in the COL4A5 gene, inherited in an X-linked manner. The majority of affected individuals will experience progressive renal insufficiency. The initial manifestation is microscopic hematuria in childhood, which ultimately progresses to proteinuria and glomerular filtration rate decline.

Codes

ICD10CM:
Q87.81 – Alport syndrome

SNOMEDCT:
770414008 – Alport syndrome

Differential Diagnosis & Pitfalls

To perform a comparison, select diagnoses from the classic differential

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Best Tests

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References

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Last Updated:03/01/2016
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Alport syndrome
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A medical illustration showing key findings of Alport syndrome : Proteinuria, Sensorineural deafness, Gross hematuria
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