Nonossifying fibroma of the proximal tibia

This eccentrically placed, well-defined radiolucent lesion displays typical features of a slowly developing neoplasm, which is distorted with long bone growth (arrow). Its length far exceeds its width.

Reproduced with permission from: Yochum TR, Rowe LJ. Yochum and Rowe's Essentials of Skeletal Radiology, Third Edition. Philadelphia: Lippincott Williams & Wilkins, 2004. Copyright © 2004 Lippincott Williams & Wilkins.

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