Aspergillosis

An abnormal chest x-ray taken from the front shows a fungus ball (arrows) beginning to form in the lungs. This finding is typical of aspergillosis. A normal chest x-ray is shown on the right for comparison; the heart (H), lungs (L), vertebrae (v), and collarbone (C) can be seen.

(Left: AP Fishman, Pulmonary Diseases and Disorders, 2 ed, 1988, McGraw-Hill, Fig. 103-4c; right: MY Chen, Basic Radiology, 1996, McGraw-Hill, Fig. 4-1b; with permission.)