TABLE 2

Patient Characteristics of Different Patterns of Nonpathologic 18F-FDG Uptake

PatternNeck fatParavertebral uptake*Perinephric fat*Mediastinal fat*Normal musculature†
No. (%)20 (2.3)12 (1.4)7 (0.8)8 (0.9)12 (1.4)
Sex (M/F)3/172/103/40/89/3
Mean age‡ (y)37 (2–68)39 (8–68)32 (8–56)42 (30–59)51 (19–71)
Mean SUVmax‡7.7 (1.9–20)4.7 (2.5–8.6)7.0 (3.2–13.8)6.0 (4.4–13.1)5.8 (3–12.6)

  • ↵* Always associated with neck fat, singly or in combination.

  • ↵† Not associated with any other patterns.

  • ↵‡ Range in parentheses.