Radiographic Anatomy of Facial Bones
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Postero-Anterior Caldwell View
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Occipito Mental (OM) (Waters) View
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Postero-Anterior 30° (Modified Parietocanthial)
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Occipito Mental 30° (OM30) View
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Submentovertex (SMV) / Slit Basal / Jughandles View
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Adult Facial Bones - Lateral View
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Slit Townes View
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Abnormalities of the Skull and Facial Bones
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Cause
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Radiological Features
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Enlargement of Skull Vault
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Children
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Hydrocephalus
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Sutural diastasis, increased convoluted
markings, “copper beaten skull”
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Raised intra cranial pressure
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Bulging of fontanelle in infancy.
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Adults
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Acromegaly
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Enlarged frontal sinuses and mandible, erosion
and enlargement of sella turcica
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Paget’s disease
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Thickened skull vault, increased density of vault
and facial bones.
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Increased Density
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Localised
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Hyperostosis frontalis
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Symmetrical thickening of the inner table of
skull vault, usually in women, of no significance.
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Meningioma
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Area of localised sclerosis, possible enlarged
groove of feeding artery.
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Fibrous displasia
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Asymmetrical, affecting the facial bones maxilla
and base of skull.
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Generalised
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Paget’s disease
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Irregular sclerosis with thickened vault.
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Secondary deposits. e.g. prostate & breast
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Irregular sclerosis, thickened vault.
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Lytic lesions
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Childhood
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Secondary deposits, neuroblastoma, leukaemi
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Variable appearances, Sutural deposits may
mimic sutural diastasis.
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Eosinic granuloma, Histiocytosis X
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Transradient defect with bevelled edges.
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Adults
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Myelomatosis
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Rounded translucent (2-10mm) multiple ‘holes’
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Secondary deposits
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Generally ill defined translucent patches.
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Hyperparathyroidism
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Mottled appearance of ‘pepper pot’ skull.
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Paget’s
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Sharply defined zones affecting large areas of
the vault.
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Radiographic Anatomy of Mandible
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Mandible - Postero-Anterior View
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Mandible - Oblique View
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Mandible – Lateral View
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Orthopantogram (OPG)
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