CT is quite useful for localizing deep-seated infections and it is the modality of choice for viewing the lateral pharyngeal infections. The definition of the internal anatomy is superior to the plain film radiographs, and the bony changes are seen quite well. The CT doses are higher than those of plain radiography, but they are lower than the multiple slices for polytomography. The CT doses depend on a variety of factors, which include the scanner type, the scanning technique, the exposure settings, the number of slices, and the slice thicknesses. The skin doses from CT can range from 0.4 to 4.7 rads, with most of the machines delivering in the 2.5 – rad range.22 The combined axial and coronal images require from 3.5 to 5.0 rads. However, the gonadal dose has been shown to be less for a total scan, and it ranges from 0.1 to 0.3mrads. These doses to the foetus can be kept to a minimum by carefully using the shielding devices. Moreover, if the diagnostic irradiation provides crucial information for the maintenance of the maternal and foetal viabilities, the benefits outweigh the risks of the exposure