PMC7394915_01
Chronologic progression of CT scan findings. A: Surveillance CT scan, six months after bilobectomy for carcinoid tumor.. B: Repeat CT scan, one month after symptom onset and three months after vaping initiation.. C: Follow-up CT scan, six months after vaping cessation and symptom resolution.
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Follow-up CT scan after six months of abstinence revealed resolution of the lung opacities, as well as thoracic lymphadenopathy (Fig. 1).
Left lower lobe transbronchial biopsy: minute foci of non-necrotizing granulomas (arrows) with multinucleated giant cells.
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A transbronchial biopsy of the left lower lobe demonstrated foci of non-necrotizing granuloma, rare histiocytic clusters with multinucleated giant cells and scattered eosinophils (Fig. 3).