≤11 ribs (differential)

≤11 ribs is associated with a number of congenital abnormalities and skeletal dysplasias, including:

However, it is important to note that up to 8% of individuals have been found to have 11 pairs of ribs, as an anatomic variant, without any apparent deleterious clinical sequelae 1.

Article information

rID: 33789
Section: Gamuts, Syndromes
Synonyms or Alternate Spellings:
  • Decreased number of ribs
  • 10 ribs
  • Ten ribs
  • Reduced number of ribs
  • Reduced rib number
  • Eleven ribs
  • Less than 12 ribs
  • Less than twelve ribs
  • <12 ribs
  • 11 or less ribs

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