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Glossary for Polydactyly, Preaxial 2

  • Bone conditions: Conditions that affect the bones
  • Congenital conditions: Any condition that you are born with such as birth defects or genetic diseases.
  • Congenital conditions -- physical defects: Congenital (birth) defects causing a physical structure defect (rather than metabolic).
  • Hand conditions: Any condition that affects the hand
  • Limb conditions: Medical conditions affecting the upper or lower limbs.
  • Musculoskeletal conditions: Medical conditions affecting the musculoskeletal system of bones, muscles and related structures.
  • Thumb deformity: Any malformation or difference in appearance of the thumb. The deformity may result from trauma, a disease process (such as rheumatoid arthritis) or may be an inherited anomaly.
  • Triphalangeal thumb: A medical term used to describe a thumb which has three bones instead of the normal two. The anomaly can occur on its own (isolated triphalangeal thumb) or may be associated with other defects. Usually both thumbs are affected.
  • Upper limb conditions: Any medical condition affecting the upper limbs, i.e. the arms, elbows, hands, etc.


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