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Differential diagnosis

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

The differential diagnoses of camptodactyly can be excluded largely by a good history and examination. They include:

  • late extension deformity:
    • infant failure of active full extension at the proximal interphalangeal joint
    • passive range full
    • suspected to be due to hypoplastic extrinisic extensor mechanism
  • arthrogryposis:
    • multiple joints involved
    • waxy skin
    • ulnar deviation of digits
  • inflammatory arthritis:
    • swollen joints
    • possible tenosynovitis
    • multiple small joints involved in the hand
  • trigger fingers:
    • metacarpophalangeal joint involvement
    • audible and/or palpable pop or click on forcible finger extension
  • pterygium syndrome:
    • usually have multiple pterygiums
    • knee and elbow involvement
  • Boutonniere deformity:
    • history of trauma and pain
    • swollen joints
    • distal interphalangeal joints hyperextended
  • symphalangism:
    • no joint motion
    • skin creases absent
  • Marfan's syndrome:
    • possible loose ligaments
    • eye abnormalities
  • juvenile palmar fibromatosis:
    • metacarpophalangeal joint flexion
    • cord development
    • skin changes with nodules

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