title: Bart–Pumphrey syndrome
text: # Bart–Pumphrey syndrome
  
  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.
  
  