Os acromiale

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[edit] Discussion of Os acromiale

  • An os acromiale is an acromial epiphysis caused by failure of the acromial ossification center to fuse properly.
  • It occurs in 1%–8% of the population
  • Although it is usually asymptomatic, it may become symptomatic by narrowing the space available for the supraspinatus tendon.
  • Should not be confused with an acromial fracture.

[edit] Imaging Findings for Os acromiale

  • The unfused anterior acromial ossification center is best seen on axially views.

[edit] Images

Patient #1

Patient #2: MRI demonstrates bilateral Os acromiales

[edit] See Also

[edit] External Links

[edit] References for Os acromiale