A Case of Osteopoikilosis Mimicking Metastases on MRI Study

Abstract

Osteopoikilosis (OP) is a benign sclerosing bone dysplasia, which may mimic many different bone pathologies. We present here a case of OP, whose magnetic resonance imaging (MRI) study was considered to have bone metastases. Our case admitted with hip pain to another hospital. His MRI examination revealed multiple sclerotic areas which previously determined as bone metastases of unknown primary origin. MRI examination of pelvis with T2-weighted transverse image shows multiple round hypointense lesions located in both femoral heads. When we re-examined the MRI findings, these sclerotic areas were thought to be related to OP. We conclude that the MRI findings of OP may mimic the bone metastases. MRI findings suggesting bone metastases may be related to an OP.