Intrapulmonary solitary fibrous tumor with malignant potential: A case report

Intrapulmonary solitary fibrous tumor is rare, and its clinical course has not been sufficiently reported. We presented a case of an 80-year-old male non-smoker and discussed the surgical procedure selection and the recurrence risk assessment. A solid nodule, 1.1 cm in diameter, was identified in the left lower lobe on chest computed tomography and showed no accumulation on positron emission tomography. A wedge resection with a sufficient surgical margin under video-assisted thoracoscopic surgery was performed. Based on histological morphology and immunohistochemical examination, this case was considered an intrapulmonary solitary fibrous tumor with malignancy potential, requiring cautious follow-up observation.