Caldwell's view

Caldwell's view (or Occipitofrontal view) is a radiographic view of skull, where X-ray plate is perpendicular to the orbitomeatal line. The rays pass from behind the head and are angled at 15-20° to the radiographic plate. It is commonly used to get better view of the ethmoid and frontal sinuses.[1] It is named after the noted American radiologist Eugene W. Caldwell, who described it in 1907.[2][3]

Method of obtaining Caldwell's view

Structures seen

Possible observations
PathologyObservation
Normal
  • Different pneumatisation patterns of frontal sinus are observed in population.
  • The frontal sinuses can be asymmetric in normal individual.
  • Usually, frontal sinus shows radiolucent shadow and individual cells are made out, giving it a scalloping or clove-like appearance.
Chronic frontal sinusitis
  • Increased frontal sinus opacity.
  • Normal scalloping absent.
Osteoma
  • Marked radiopacity is seen. (Denser than bone)
Erythroblastic anemia

References
  1. Yanagisawa, E.; Smith, H. M. (1968-03-01). "Radiographic Anatomy of the Paranasal Sinuses: IV. Caldwell View". Archives of Otolaryngology–Head & Neck Surgery. 87 (3): 311–322. doi:10.1001/archotol.1968.00760060313016. ISSN 0886-4470. PMID 5642379.
  2. Berk, R N (June 1995). "Eugene W. Caldwell Lecture. Why Caldwell?". American Journal of Roentgenology. 164 (6): 1321–1322. doi:10.2214/ajr.164.6.7754868. ISSN 0361-803X. PMID 7754868.
  3. Hoeffner, E.G.; Mukherji, S.K.; Srinivasan, A.; Quint, D.J. (December 2012). "Neuroradiology Back to the Future: Head and Neck Imaging". AJNR. American Journal of Neuroradiology. 33 (11): 2026–2032. doi:10.3174/ajnr.A3365. ISSN 0195-6108. PMC 7965588. PMID 23064595.
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