Which dermatome corresponds to the medial malleolus?

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Multiple Choice

Which dermatome corresponds to the medial malleolus?

Explanation:
The sensation at the medial malleolus corresponds to the L4 dermatome. Dermatomes map sensory areas of the skin to specific nerve roots, and the L4 distribution runs down the medial leg to the inner ankle, including the medial malleolus. This is why loss or changes in sensation there point toward L4 involvement. In contrast, L5 covers the dorsum of the foot and big toe region rather than the medial ankle, C6 is an upper‑limb territory, and L3 is higher up on the thigh/inner knee area.

The sensation at the medial malleolus corresponds to the L4 dermatome. Dermatomes map sensory areas of the skin to specific nerve roots, and the L4 distribution runs down the medial leg to the inner ankle, including the medial malleolus. This is why loss or changes in sensation there point toward L4 involvement. In contrast, L5 covers the dorsum of the foot and big toe region rather than the medial ankle, C6 is an upper‑limb territory, and L3 is higher up on the thigh/inner knee area.

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