The Unusual Entity of Mixed Squamous and Glandular Papilloma

Mixed squamous and glandular papilloma of the lung is uncommon. Current literature demonstrates that there are less than 20 cases documented worldwide, though likely underreported. We present a case of a 58 y.o. female with history of COPD who was found to have mixed squamous and glandular papilloma, confirmed by histology. This case highlights an unusual etiology of endobronchial lesion that can mimic a malignancy. Clinicians should be aware of this entity because resection can be curative and prognosis is good.