Demographics:
11 years old, Male
Indication:
Knee pain
Findings
- No acute fracture or malalignment
- Bubbly lucent lesion in the proximal tibial diaphysis measuring 5.5 x 2.7 cm with a narrow zone of transition and no periosteal reaction. The lesion involves greater than 50% of the tibial diameter
Diagnosis
Bone cyst
Sample Report
No acute fracture or malalignment.
Bubbly lucent lesion in the proximal tibial diaphysis measuring 5.5 x 2.7 cm with a narrow zone of transition and no periosteal reaction. This lesion has non-aggressive features with differential diagnosis including aneurysmal bone cyst, multilocular bone cyst, and nonossifying fibroma. MRI could further evaluate if clinically indicated. The lesion involves greater than 50% of the tibial diameter, which places the patient at increased risk for pathologic fracture, though no fracture is identified.
Discussion