Fractures of the proximal fifth metatarsal that are distal to the tuberosity require more aggressive treatment. This includes fractures of the metaphyseal-diaphyseal junction (Figure 5) and fractures of the diaphysis (Figure 6). Complications such as delayed union and nonunion are common.
Extramedullary spinal tumors are far more common than intramedullary tumors. The most common extramedullary spinal tumors are meningiomas and schwannomas and they are both generally benign tumors. Meningiomas arise from arachnoid cells within the tissues of the spinal cord.
Characterization of intradural spinal tumors and differential diagnosis by location. Intradural spinal tumors can be divided into extramedullary and intramedullary tumors. Intradural extramedullary (80% of intraspinal tumors in adults, 65â70% of intraspinal tumors in children): Schwannoma (30%). Meningioma (25%).