Clinical Nuclear Medicine, cilt.26, sa.11, ss.962, 2001 (SCI-Expanded, Scopus)
A 49-year-old man was hospitalized because of severe back pain and weight loss for 2 months. Because the serum carcinoembryonic antigen (CEA) level was elevated to 37.5 ng/ml (normal, <5.2 ng/ml), gastrointestinal endoscopy was performed but no suspicious lesions were found in the gastrointestinal tract. He was referred for a bone scan after computed tomography disclosed multiple destructive lesions in the lumbar spine. Tc-99m MDP bone scintigraphy showed multiple bone metastases.