Facial X-ray

Sinus X-Ray, X-Ray, Face, X-Ray, Sinus

Test Overview

A facial X-ray is a series of pictures of the bones in your face. One type of facial X-ray (called a paranasal sinus X-ray series) looks at the air-filled cavities (sinuses) around the nose and eyes.

X-rays are a form of radiation, like light or radio waves, that are focused into a beam, much like a flashlight beam. X-rays can pass through most objects, including the human body. X-rays make a picture by striking a detector that either exposes a film or sends the picture to a computer. Dense tissues in the body, such as bones, block (absorb) many of the X-rays and look white on an X-ray picture. Less dense tissues, such as muscles and organs, block fewer of the X-rays (more of the X-rays pass through) and look like shades of grey on an X-ray. X-rays that pass only through air look black.

See an illustration of the bones of the face .

A facial X-ray helps find bone fractures, tumours, foreign objects, infections, and abnormal growths or changes in bone structure or size. An X-ray of the eye (orbital cavity) may be taken if the eye has been injured. A computed tomography (CT) scan may be needed to check any problems seen on X-ray.

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Author:	Carrie Henley Jan Nissl, RN, BS	Last Updated: July 26, 2006
Medical Review:	Adam Husney, MD - Family Medicine Paul D. Traughber, MD - Radiology Kenneth B. Sutherland, CD, BSc, MD, FRCPC - Diagnostic Radiology
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