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Figure 3


Fig. 3A —Comparison of two major patterns of downward course of common peroneal nerve in posterior knee on axial proton density (PD)-weighted images (TR/TE, 2,000/32). Absence of tunnel in 45-year-old asymptomatic woman. Common peroneal nerve (straight arrow) sits within large amount of fat. Short head of biceps femoris muscle (curved arrow) is quite small. Asterisk = lateral head of gastrocnemius muscle.