Axial bone window
Modality: CT (bone window)

Used in the following articles:

  • Pyriform aperture stenosis - “ Pyriform aperture stenosis refers to narrowing of the pyriform aperture and results from early fusion and hypertrophy of the medial nasal processe...”
  • Choanal atresia - “ Choanal atresia refers to a lack of formation of the choanal openings. It can be unilateral or bilateral. Epidemiology It frequently presents in...”

View full size version of Congenital pyriform aperture stenosis

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