Nodule‐type pneumonitis mimicking lung abscess or tumor recurrence on chest computed tomography identified as osimertinib‐induced pneumonitis: A case report

Abstract

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.

Osimertinib-induced radiation recall pneumonitis

“…To our knowledge, there is only one case report with osimertinib as a triggering agent for RRP. Management of such patients include withholding the trigger agent and treatment with corticosteroids in symptomatic patients 2 3. This is the first case report on the impact of different supportive care interventions in symptom control in osimertinib-induced RRP.…”