| Summary: | Purpose: To describe the ophthalmic findings in the fundus of a Japanese infant with Potter sequence having a mutation in the PAX2 gene. Methods: A 1-month-old infant diagnosed with Potter sequence who had bilateral renal hypoplasia and a mutation in the PAX2 gene was subjected to detailed ophthalmic examination. Results: Funduscopy revealed a megalopapilla with marked excavation in the right eye. The left optic disc showed a similar abnormality, but to a lesser extent. B-mode ultrasonography and magnetic resonance imaging detected giant cystic lesions occupying the optic nerve head in both eyes. According to these results, we diagnosed this patient as having papillorenal syndrome (PRS) associated with a PAX2 mutation. Conclusions: This report shows ophthalmic findings in the youngest patient with PRS and PAX2-associated Potter sequence. Optic disc anomalies may be involved in some infants with Potter sequence. We anticipate an increase in opportunities for ophthalmic examinations in infants with diseases such as Potter sequence with previously high mortality rates.
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