Pulmonary benign metastasizing leiomyoma: A case report and review of the literature

Figure 1 Chest high-resolution computed tomography imaging. A-C: The three largest lung nodules on chest high-resolution computed tomography; D: Computed tomography-guided percutaneous lung puncture biopsy of the largest nodule in the right lower lobe.

Figure 2 Chest X-ray imaging. A: Complication of pneumothorax after computed tomography-guided percutaneous lung puncture biopsy; B: The patient recovered after thoracic puncture and aspiration.

Figure 3 Histological findings. A-D: Histopathological examination of the lung puncture biopsy specimen: A few spindle cells were seen, and a spindle cell tumor was considered; immunohistochemical smooth-muscle labeling revealed Desmin(+) and SMA(+), suggesting smooth muscle origin.

Figure 4 Positron emission tomography-computed tomography imaging. A and B: Positron emission tomography-computed tomography showed multiple nodules in both lungs with no uptake of fluorodeoxyglucose.

Figure 5 Follow-up with chest high-resolution computed tomography imaging after 6 mo. A-C: No progression.

Figure 6 Three major diagnostic aspects for pulmonary benign metastatic leiomyoma. PBML: Pulmonary benign metastatic leiomyoma.