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

Table 1

FOPE zone clinical summary.

Etiology	Unknown. Likely due to mechanical stress placed on the physis during early physeal closure.
Incidence	Rare. Only a small case series reported in the literature.
Gender ratio	Unknown. There may be a higher incidence in females.
Age of predilection	12–16 years old.
Risk factors	No known risk factors.
Treatment	No treatment for asymptomatic lesions. Symptomatic lesions treated conservatively with protected weight bearing.
Prognosis	Excellent. Self-limited process that likely resolves shortly after physeal closure.
Imaging findings	Focal enhancing bone marrow edema on both sides of a central portion of a narrowed or partially closed physis.