Migratory symptomatic bone marrow oedema of the knee: a case report and literature review.

Bone marrow oedema is a common finding on MRI. Differential diagnosis includes many different clinical entities. We hereby present a case of migrating symptomatic bone marrow oedema from the medial to the lateral femoral condyle after which spontaneous resolution of both clinical and radiographic findings occurred. The role of altered weight-bearing due to therapeutic use of an unloading brace as a potential causative factor in the pathogenesis of migrating bone marrow oedema remains unclear. The literature on the topic is reviewed.