Severe Atelectasis due to Aspirated Valproic Acid Tablet

Figure 1

(a, b) Chest computed tomography images demonstrating sputum accumulation in the left main bronchus and a completely atelectatic left lung. Bronchoscopic images showing sputum obstruction of the (c) left main bronchus and the aspirated valproic acid tablet (arrow) in the (d) left inferior lobar bronchus.

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