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. 2026 Sep 3;16:1848651. doi: 10.3389/fonc.2026.1848651

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Copyright © 2026 Zhang, Zhou, Qiu and Yang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Panel A: July 2025 chest CT demonstrates bilateral pulmonary infiltrates, ground‑glass opacities and right‑sided pleural thickening. Panel B: Bronchoscopy displays the right upper lobe bronchial stump, with smooth mucosa and patent lumens in remaining bronchi. Bronchoalveolar lavage was performed at the dorsal segment of the right lower lobe for further examination. — (A) Chest CT scan in July 2025, showed multiple bilateral pulmonary infiltrates and ground-glass opacities, accompanied by right pleural thickening. (B) Bronchoscopy revealed the stump of the right upper lobe bronchus; the mucosa of the remaining lobar and segmental bronchi was smooth with patent lumens. Bronchoalveolar lavage (BAL) was performed at the dorsal segment of the right lower lobe.