Limping child: a rare case of neuroblastoma

Introduction Neuroblastoma is a rare condition which usually presents with an abdominal mass. It is a malignant tumour of sympathetic nervous tissue and the second most common solid tumour of childhood. We are reporting this rare case of neuroblastoma presenting with a limp. There is one other report of a similar case in English literature. This 3-year-old boy presented with a 10-day history of a limp. There was no history of trauma and the movements of the hips and knees were normal. His inflammatory markers were mildly raised and ultrasound and X-rays of the hips were normal. Magnetic resonance imaging showed infiltrative lesions in the left femur as well as other parts of the skeleton. Bone marrow biopsy in a regional paediatric centre confirmed a diagnosis of neuroblastoma and he is now in a regional chemotherapy trial. This case highlights the rare orthopaedic presentation of this childhood malignancy.