Table 1. Diagnostic Criteria for WS Proposed by Waardenburg Consortium
Major Criteria |
· Congenital sensoineural hearing loss · Pigmentary disturbances of iris: Complete heterochromia iridis, partial segmental heterochromia iridis, hypoplastic blue iridis · White forelock · Distropia canthorum · Affected first degree relative |
Minor Criteria |
· Congenital leukoderma: several area of hypopigmented skin · Medial eyebrow flare (synophyrys) · Broad and high nasal root · Hypoplasia of alae nasi · Premature graying of hair |