Schwannoma of the lumbar spine, presenting with pain of the knee, like an osteoid osteoma, in a 10-year-old girl.

Localized pain in the absence of local lesion may represent referred pain from the spine, in a child, arising from a benign spinal schwannoma. It can be diagnosed by MRI. Surgical excision of the tumor relieves the symptoms.

Diagnostic approach and arthroscopic treatment of septic arthritis of the knee, in an infant.

A 9-month-old baby presented with sudden inability to stand and unable to move his leg. Clinical examination showed edema and knee effusion. Blood tests and MRI confirmed septic knee arthritis without bone involvement.

Bilateral femoral fractures during birth, in a neonate with malformation complex with stiffness.

Fetuses with prenatal diagnosis of reduced mobility and malformation are at increased risk to sustain neonatal femoral fractures. Labor difficulties even after an elective cesarean section may trigger the fractures of the long bones.