**7.2 Imaging**

In cases of chlamydial pneumonia, the most chest radiographs show bilateral hyperexpansion and diffuse infiltrates with a variety of radiographic patterns, including interstitial, reticular nodular, atelectasis, coalescence and bronchopneumonia. Pleural effusion and lobar consolidates are usually absent [33, 45]. Radiological findings alone are non-specific so it is almost impossible to determine by radiographic manifestations that a specie of clamydiae is the causative organism of the pneumonia.
