Smooth Muscle Tumor Originating in the Pleura: A Case Reportand Updated Literature Review

Smooth muscle tumors (SMTs) of the pleura are exceptionally rare. At present and to the best of these authors’ knowledge, thereare only 17 cases reported in the literature. We describe a case of a 51-year-old woman who complained of left sided pleuritic chestpain. Further, computed tomography (CT) revealed a left sided localized pleural-based mass involving the 9th rib. She underwent aninterventional radiology guided percutaneous core biopsy of the lesion, which disclosed a “Smooth Muscle Tumor of UndeterminedMalignant Potential (SMT-UMP).” A video-assisted thoracoscopic surgery (VATS) was performed for diagnosis and treatmentpurposes. Resections of the pleural-based mass and 9th rib were performed. SMT-UMP was the definitive diagnosis.