Vocal cord paralysis associated with pleuroparenchymal fibroelastosis: A case report and literature review.

Here, we report a case of idiopathic pleuroparenchymal fibroelastosis (PPFE) that progressed to pulmonary aspergilloma, aspiration pneumonia, and left vocal cord paralysis (VCP). To date, five cases of PPFE with VCP have been reported, including the present case. Aspiration pneumonia occurred in three cases, leading to death in two cases. Four cases had left-sided paralysis, in two of which, the paralysis occurred on side opposite to the predominant side (right side) of PPFE. Structural mechanisms underlying the recurrent laryngeal nerve could be involved. This report may further highlight the existence of hoarseness and dysphagia in PPFE.