The authors describe the radiological aspects of pulmonary aspergillosis in chronic granulomatous disease in children. The radiological anomalies reveal the aspergillosis in 35% of the cases. Association of alveolar opacities, chronic peripheral, sometimes bilateral, with localized pleural thickening must raise the diagnosis. CT scan allows an early diagnosis of parietal and mediastinal involvement and can show invisible lesions on standard chest film.