Background: Generally computed tomography (CT) imaging findings of PAF present as well-defined, homogeneous and solitary nodules. Current evidence shows, no cases of PAF with central liquefaction necrosis on CT. Case Report: A 70-year-old man was hospitalized due toan inguinal hernia without respiratory symptoms. Chest CT scan revealed a tumor (about 6.5cm*5.5cm) in the lower lobe of the left lung. According to a contrast-enhanced scan, the lesion was slightly enhanced, and liquefaction necrosis appeared in the center. Wedge resection was performed by video-assisted thoracic surgery(VATS). The postoperative pathology diagnosis was PAF. Conclusion: PAF with liquefied necrosis in the center of the tumor on CT is very rare and needs to be differentiated from malignant tumors and solitary fibrous tumor through histopathology and even immunohistochemistry.