Pulmonary Leiomyoma in a Post-hysterectomy Patient: A Diagnostic Challenge.

Pulmonary leiomyoma is a rare benign smooth muscle tumor that may present as a solitary lung mass and mimic malignancy. In women with a prior history of uterine leiomyoma and hysterectomy, the possibility of benign metastasizing leiomyoma (BML) must be considered. We report a case of a middle-aged woman with a prior hysterectomy for uterine leiomyoma who presented with an endobronchial tumor, suspicious for malignancy. The patient underwent lobectomy, and histopathological evaluation confirmed the leiomyoma of the lung. This case highlights the diagnostic dilemma posed by such lesions and underscores the importance of histopathological and immunohistochemical evaluation in establishing the diagnosis.