A Primary Endobronchial Schwannoma Coexisting with an Ipsilateral Lung Adenocarcinoma: A Case Report and Literature Review

Primary endobronchial schwannomas are relatively rare, benign tumors of neurogenic origin. Their presence within the bronchus may lead to cough, hemoptysis, dyspnea and obstructive pneumonia. We present the case of an 83-year-old man with a primary endobronchial schwannoma simultaneously occurring with an ipsilateral bronchogenic adenocarcinoma, and review the literature on primary endobronchial schwannomas. To date, primary endobronchial schwannomas coexisting with lung adenocarcinomas have not been reported, and their relationship is still unknown. We should always keep in mind that endobronchial benign tumors may mimic endobronchial involvement of malignancies. Bronchofiberscopic examination with biopsy is warranted for any endobronchial tumors, and will have an important influence on the staging, treatment, and outcome of coexisting cancers.