Unusual Presentations of Focal Periphyseal Edema Zones: A Report of Bilateral Symmetric Presentation and Partial Physeal Closure

Figure 11

A 13-year-10-month-old female with FOPE zone of the distal right femur. Findings: (a) sagittal proton density fat-saturated image shows pivot-shift pattern of bone marrow edema at the weight-bearing aspect of the lateral femoral condyle and posterior aspect of the lateral tibial plateau (asterisks). (b) Coronal proton density fat-saturated image shows increased signal in the lateral meniscus posterior horn root ligament (arrow) consistent with tearing of the ligament. Tear of the root ligament was confirmed on arthroscopy. Technique: (a) sagittal PD fat-saturated MRI (TR = 2,557, TE = 30), ST = 3 mm, spacing = 3.3 mm, FOV = 14 cm, and matrix = 364 × 261; (b) coronal PD fat-saturated MRI (TR = 2,826.1, TE = 30), ST = 2.5 mm, spacing = 3.3 mm, FOV = 15 cm, and matrix = 312 × 244.

(a)

(b)