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.
Types of Spine and Spinal Cord Tumors. Like brain tumors, spinal tumors are caused by abnormal cell growth, either in the spine or next to the spine. Researchers are unsure what causes the cells to grow abnormally, but the tumors can either become benign (noncancerous) or malignant (cancerous). While rare, these types of tumors can be extremely serious.