Results of Whole-Body 18F-FDG PET Study According to Primary Tumors in Patients with Metastatic Brain Tumor

Primary tumorNo. of patients
True-positive findings
 Lung cancer48
 Malignant lymphoma2
 Gastric cancer2
 Nasopharyngeal cancer2
 Rectal cancer, pancreatic cancer, renal cell carcinoma, malignant melanoma, osteosarcoma, abdominal sarcoma, adenoid cystic carcinoma1*
False-negative findings
 Renal cell carcinoma3
 Gastric cancer, malignant melanoma, choriocarcinoma, lung cancer in hilum1*