Neupsy Key

Radiation therapy is frequently used as adjunctive therapy or primary therapy. Primary therapy may be for curative intent, palliation, or stabilization. Ionizing radiation is the mainstay of treatment in neurooncology,…

Multiple Sclerosis. Multiple sclerosis (MS) is the most common demyelinating disease of the central nervous system. Imaging typically reveals multiple lesions in a characteristic pattern, such as “Dawson’s fingers” (periventricular…

Chordomas can be classified into three subgroups. The most common are the conventional chordomas, which are distinguished by the absence of mesenchymal elements such as cartilage. On histologic examination, lobules…

Lateral ventricle tumors, while varying in pathology, all arise from cells located within or around the ventricular walls. About half of lateral ventricular tumors consist of low-grade gliomas with choroid…

The retromastoid suboccipital approach can be used for any size tumor with or without attempts to preserve hearing. This technique allows the tumor and the important structures medial and lateral…

Histologically, vestibular schwannomas appear quite similar to peripheral schwannomas. On a microscopic level, there are zones of dense and sparse cellularity, identified as Antoni A and B areas, respectively. They…

Non–germ cell tumors include pineal parenchymal tumors, glial tumors, and metastasis from systemic tumors. Pineal parenchymal tumors are traditionally classified as the lower-grade pineocytoma and the malignant pineoblastoma. Pineocytomas occur…

With surgery, about 87% of patients have reported improvement in preoperative visual deficits, and many patients have reported improvement in preoperative endocrine deficits. Recurrence can occur but is rare in…

Craniopharyngiomas are typically slow growing with slow onset of symptoms. Visual deficits are a common complaint due to direct pressure of the tumor on the optic chiasm. Hormonal abnormalities can…

The pituitary gland is located in the sella turcica in the body of the sphenoid bone. The tuberculum sellae forms the anterior border of the sella turcica, and the dorsum…