title: What causes lower neck uptake in bone scans?
abstract: Lower neck uptake, frequently seen on anterior views of bone scans done with 99mTc-phosphate compounds, was studied in 122 patients to determine its incidence and etiology. Increased uptake was identified in the lower neck anteriorly in 46 patients (38%). In 14 of these, moderately severe to severe arthritis appeared to cause the uptake; metastatic disease was the cause in 8 cases; and in 1 case there was prominent uptake in the thyroid cartilage. Positioning artifact accounted for the uptake in the other 23 cases. Thyroid uptake was never observed.
mesh_terms: D000328:Adult; D002574:Cervical Vertebrae; D011756:Diphosphates; D012968:Etidronic Acid; D006801:Humans; D007817:Laryngeal Cartilages; D009362:Neoplasm Metastasis; D010003:Osteoarthritis / Q000175:diagnosis*; D011877:Radionuclide Imaging; D013122:Spinal Diseases / Q000175:diagnosis; D013125:Spinal Neoplasms / Q000175:diagnosis*; D013667:Technetium
chemical_list: D011756:Diphosphates; D013667:Technetium; D012968:Etidronic Acid