How to Increase White Blood Cells. Leukocytes or white blood cells typically make up 4000-10,000 WBCs for every microliter of blood. If your white blood cell count drops below 3500 WBCs for every microliter of blood it causes a condition called leukopenia that causes cramps, fever, sore gums, diarrhea, sneezing, headaches, sore throat, etc. These are signs that your immune system is weak and you are susceptible to infection.
Causes of Schwannoma. Causes of Schwannoma. The exact cause of a schwannoma is not known, although the inherited genetic disorder, neurofibromatosis, is a risk factor for developing a schwannoma. Schwannoma: Related Medical Conditions. Schwannoma: Causes and Types.
The most common extramedullary spinal tumors are meningiomas and schwannomas and they are both generally benign tumors. 1  Meningiomas arise from arachnoid cells within the tissues of the spinal cord. 2  Schwannomas are tumors that arise from Schwann cells.