osimertinib and Lung-Abscess

Osimertinib-induced pneumonitis usually manifests as ground glass opacities (GGO) on chest computed tomography (CT) scans. Here, we encountered a case involving a 42-year-old woman who had nodule-type pneumonitis mimicking lung abscess or tumor recurrence caused by osimertinib. When a nodular pattern is seen on the chest CT scan of a patient receiving osimertinib treatment, drug-induced pneumonitis should be considered as a differential diagnosis. To the best of our knowledge, this is the first case of osimertinib-induced pneumonitis that manifested as a nodule-type pneumonitis mimicking lung abscess or tumor recurrence on chest CT scan.

Topics: Adult; Female; Humans; Lung Abscess; Neoplasm Recurrence, Local; Pneumonia; Tomography, X-Ray Computed