Fig. 3From: A diagnostic model based on 18F-FDG PET/CT parameters in improving the differential diagnosis of invasive thymic epithelial tumors and anterior mediastinal lymphomasPET/CT findings of a 23-year-old patient with diffuse large B-cell lymphoma. A A large soft tissue mass in the anterior medial malleolus which was composed of multiple nodules. Tumor invaded into the front chest wall and partial adjacent large blood vessels (arrow). B Significant radioactive abnormal signals (arrow) in the tumor, SUVmax \(=\) 35.5. C Tumor edge was lobulated with a fissure-like necrotic region inside the tumor (arrow). D Radioactive defect inside necrotic region (arrow)Back to article page