Skip navigation

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Results 1 - 9 of 9 for Symphalangism of the thumb
  1. ... fifth fingers that curve inward (clinodactyly), underdeveloped thumbs (thumb hypoplasia), and fusion (syndactyly) of the second and third toes or the ...
  2. ... have abnormally small or missing thumbs. Alternatively, the thumb might be duplicated, fused with the index finger (syndactyly), abnormally placed, or have three bones instead of ...
  3. ... The most common abnormality is malformed or absent thumbs. Affected individuals may also have fingers that are unusually curved (clinodactyly) or fused together (syndactyly). Their forearms may be shortened due to the ...
  4. ... fingers or toes (polydactyly) or an abnormally wide thumb or big toe (hallux). The skin between the fingers and toes may be fused (cutaneous syndactyly). This disorder is also characterized by widely spaced ...
  5. ... polydactyly) or on the same side as the thumb or great toe (preaxial polydactyly). Some affected individuals also have webbed or fused skin between the fingers or toes (syndactyly).Distinctive facial features that can occur with acrocallosal ...
  6. ... among similar malformations in that affected individuals have thumbs, while ... (syndactyly) or curved pinky fingers (fifth finger clinodactyly). Some ...
  7. ... of the muscle at the base of the thumb (thenar hypoplasia), or a single crease across the palm of the hand. Foot abnormalities can include high arches of the feet (pes cavus); bunions; fusion of the skin between some toes (cutaneous syndactyly); or joint deformities (contractures) in the ankles, feet, ...
  8. ... also common.In people with Pfeiffer syndrome, the thumbs and first (big) ... digits (syndactyly).Pfeiffer syndrome is divided into three subtypes. Type ...
  9. ... forefinger, and the corresponding toes) become fused. The thumb and big toe are usually not involved. Affected ... of related conditions referred to as NOG-related-symphalangism spectrum disorder (NOG-SSD). NOG This condition is ...