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Diagrams showing the classification system for the treatment of pathological fractures of the proximal femur associated with bone cysts in children (adapted with permission from Dormans JP, Pill SG. Fractures through bone cysts: unicameral bone cysts, aneurysmal bone cysts, fibrous cortical defects, and nonossifying fibromas. Instr Course Lect 2002;51:457–467).
