COL4A1 mutations present with a spectrum of clinical phenotypes often involving the cerebrovascular and ophthalmic systems. We report 2 cases of COL4A1 mutations that presented with congenital cataracts and porencephaly. Both patients had posterior cortical cataracts and radiographically defined bilateral posterior lenticonus. Considering the long-term clinical implications of these mutations, posterior cortical cataracts, bilateral posterior lenticonus, and porencephaly should raise clinical suspicion for COL4A1 mutations.
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