Imaging of skeletal muscle in vitamin D deficiency

Figure 1 Cross-sectional computed tomography at the level of the middle thigh showing fatty degeneration and atrophy of skeletal muscles in a vitamin D-deficient patient.

Figure 2 Magnetic resonance imaging of two different grades of fatty degeneration and atrophy involving thigh muscle in patients with vitamin D deficiency. A: Grade 1 (less than 30% of the volume of muscles involved); B: Grade 2 (30%-60% of the volume of muscles compromised).