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Chamberlain line

Dr Jeremy Jones and Dr Ayush Goel et al.

Chamberlain line is a line joining the back of hard palate with the opisthion on a lateral view of the craniocervical junction.


It helps to recognize basilar invagination which is said to be present if the tip of the dens is >3 mm above this line.

McGregor developed a modification of the Chamberlain line for when the opisthion could not be identified on plain radiographs.

See also

Article information

rID: 22724
Synonyms or Alternate Spellings:
  • Chamberlain's line

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Cases and figures

  • Figure 1: Chamberlain line
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  • Figure 2
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  • Figure 3
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  • Case 1
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