![Bart–Pumphrey syndrome Bart–Pumphrey syndrome](https://upload.wikimedia.org/wikipedia/commons/thumb/4/4e/Autosomal_dominant_-_en.svg/400px-Autosomal_dominant_-_en.svg.png)
Bart–Pumphrey syndrome, also known as palmoplantar keratoderma with knuckle pads and leukonychia and deafness) is a cutaneous condition characterized by hyperkeratoses (knuckle pads) over the metacarpophalangeal, proximal and distal interphalangeal joints. It was characterized in 1967. It can be associated with GJB2.
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