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Mastoid X-ray

Mastoid air cells (CT is more accurate).

General health information, not a diagnosis. In an emergency, call 102. Always consult a qualified health professional.

What it shows

Mastoid air cells (CT is more accurate).

Why it is done

Chronic ear infection.

Preparation

Usually no preparation. Remove metal and jewellery from the area. Tell staff if you are or might be pregnant.

Radiation & safety

Typical effective dose 0.02 to 0.1 mSv, similar to a few days of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.

How long it takes

a few minutes. General information, not a diagnosis. Results must be interpreted by a qualified health worker.

Consult a doctor to interpret results — a single test does not make a diagnosis.

Where to get this near you

🏥 Care near you

Uses your location once to list the nearest facilities. Nothing is stored.

Common questions

Why is Mastoid X-ray done?
Chronic ear infection.

How do I prepare for Mastoid X-ray?
Usually no preparation. Remove metal and jewellery from the area. Tell staff if you are or might be pregnant.

Is Mastoid X-ray safe in pregnancy?
Typical effective dose 0.02 to 0.1 mSv, similar to a few days of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.

SI text CC BY 4.0; RadiologyInfo.org (ACR/RSNA) and MedlinePlus linked as references only, no text copied.

Sources: SI health summary (own words); decoder imaging pack; RadiologyInfo.org and MedlinePlus as references only

Emergency — call📞 102