For a lateral foot radiograph, at which metatarsal base is the central ray most often aimed?

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Multiple Choice

For a lateral foot radiograph, at which metatarsal base is the central ray most often aimed?

Explanation:
Centering the central ray at the base of the third metatarsal places the beam level with the midfoot, giving a true lateral view where the hindfoot (talus and calcaneus) can be superimposed nicely and the metatarsals are shown without distortion. This spot sits near the foot’s center, so the projection stays balanced and the joints of interest in the midfoot and hindfoot are well demonstrated. If the beam were directed at the base of another metatarsal, the view would shift, causing unequal overlap and distortion that can obscure anatomy and reduce diagnostic clarity.

Centering the central ray at the base of the third metatarsal places the beam level with the midfoot, giving a true lateral view where the hindfoot (talus and calcaneus) can be superimposed nicely and the metatarsals are shown without distortion. This spot sits near the foot’s center, so the projection stays balanced and the joints of interest in the midfoot and hindfoot are well demonstrated. If the beam were directed at the base of another metatarsal, the view would shift, causing unequal overlap and distortion that can obscure anatomy and reduce diagnostic clarity.

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