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Pendred syndrome: Sensitivity and Specificity

Introduction:

  • Most common syndromic form of hereditary SNHL
  • AR
  • Associated thyroid goiter develops in 2nd decade of life - usually euthyroid
  • Hearing loss is usually congenital - severe to profound, bilateral and pre-lingual
  • Most cases result from mutations in SLC26A4 gene that encodes an anion transporter known as pendrin that is expressed in the inner ear, thyroid, and kidney
  • Radiologic studies always show a temporal bone anomaly, either dilated vestibular aqueducts or Mondini dysplasia
  • [Edit Diagnosis] [Merge dx] [Add prevalence]

    Tags: None. Tag this Diagnosis.

    Prevalence

    Population / CalculatorPrevalence Comments / Study / Link
    0.007% 7.5-10 / 100,000

    PMID:9398842

    More, Edit...

    The sensitivity and specificity of findings for Pendred syndrome are listed below. See the left navigation bar to change the display.

    Pre-Test Probability (Prevalence): %. Post-Test Probability (Predictive Value): %. Switch to display mode.
    **Note that calculating probabilities from more than one finding is inherently inaccurate because findings are not independent. (For example, using two positive findings that share a common pathogenesis is likely to overestimate the true probability.)
    FindingResult SensitivitySpecificity
    [ + ] Congenital hearing loss No accuracy specified.
    [ + ] Enlarged vestibular aqueduct (EVA) No accuracy specified.
    [ + ] Goiter No accuracy specified.
    [ + ] Mondini dysplasia No accuracy specified.
    [ + ] perchlorate discharge test No accuracy specified.
    [ + ] Sensorineural hearing loss (SNHL) No accuracy specified.
    [ + ] SLC26A4 genetic testing No accuracy specified.