ABSTRACT
The roentgenographic patterns defined in several chest diseases may be applied to paracoccidioidomycosis and actually they are similar to those found in tuberculosis. Many different roentgenographic changes can be found but the most common patterns are: Micronodular or miliary shadows, nodular or multiple nodular lesions, infiltrative or interstitial pattern, multiple noncircumscribed lesions, cavitary lesionsb and fibrotic lesions. The lesions are diffusely disseminated at the apices, central areas, bases, and periphery throughout the lung. Miliary Lesions pattern is characterized by a diffuse and disseminated reticulonodular infiltration of the lungs which is difficult to differentiate from tuberculosis, pneumoconiosis, histiocytoses, bacterial and viral infections, and malignant tumors. The cavities are small, perihilar, and often irregular, in most instances located at the central areas of the lungs. Computerized tomography (CT) is a useful method to study interstitial lesions of the lungs by providing more information than that given by the conventional radiography.
