Idiopathic Plastic Bronchitis in a Post-Liver Transplant Adult: A Case Report

Background: Plastic Bronchitis (PB) is a rare condition involving bronchial cast formation, typically seen in children but occasionally reported in adults with diverse etiologies. Case Details: We present a unique case of idiopathic PB in a 67-year-old male, 10 years post-liver transplant, on long term immunosuppression with Sirolimus. Diagnostic workup ruled out known causes, and symptoms resolved with steroids, suggesting a potential link to transplantation or immunosuppression. Conclusion: This case highlights a novel etiology for PB in adults. Keywords Adult Plastic Bronchitis, Idiopathic Plastic Bronchitis, Plastic Bronchitis