Results 261 to 270 of about 187,996 (306)

Metastases of central nervous system neoplasms

Journal of Neurosurgery, 1988
✓ Tumor-to-tumor metastasis is a rare occurrence. Fewer than 100 cases have been reported, many being metastases from carcinomas to benign intracranial neoplasms, most often meningiomas. A case is presented of carcinoma metastatic to a glioma. The patient, who presented for evaluation of bifrontal headache, was found on computerized tomography to have ...
P W, Tally, E R, Laws, B W, Scheithauer
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AGING AND PRIMARY CENTRAL NERVOUS SYSTEM NEOPLASMS

Neurologic Clinics, 1998
The number of primary brain tumors in the aging population has increased over the past few decades. Although overall survival rates for many patients with primary central nervous system neoplasms have not changed drastically, patients with particular tumor types are benefitting from new treatments.
D T, Blumenthal, L M, DeAngelis
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Central Nervous System Neoplasms

1993
A. Local effects of tumors 1. Infiltration, invasion, and destruction of normal central nervous system tissues by tumor produces focal neurological signs 2. Mass of tumor produces direct pressure on neural structures causing degeneration (although brain and spinal cord can adjust remarkably to gradually increasing pressure)
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Primary melanocytic neoplasms of the central nervous system

Journal of Clinical Neuroscience, 2010
Primary melanocytic neoplasms of the central nervous system (CNS) are rare lesions arising from melanocytes of the leptomeninges. They include diffuse leptomeningeal melanocytosis or melanomatosis, melanocytoma and primary malignant melanoma. We have reviewed the English literature regarding these lesions, which consists of case reports and a small ...
Simon V, Liubinas, Nicholas, Maartens, Katharine J, Drummond   +2 more
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Primary Melanocytic Neoplasms of the Central Nervous System

The American Journal of Surgical Pathology, 1999
Primary melanocytic neoplasms of the central nervous system (CNS) consist of a spectrum ranging from well-differentiated melanocytoma to its overtly malignant counterpart, melanoma. Diagnostically difficult intermediate lesions lie between these extremes.
D J, Brat, C, Giannini, B W, Scheithauer, P C, Burger   +3 more
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Immunolocalization of cathepsin D in the human central nervous system and central nervous system neoplasms

Neuropathology and Applied Neurobiology, 1990
The cellular distribution of the lysosomal proteinase cathepsin D was studied in a series of 76 neoplasms and 18 non‐neoplastic tissues from the human central nervous system, using a well‐characterized polyclonal antibody in a peroxidase‐antiper‐oxidase technique. In the normal and developing brain, cathepsin D is confined to neurons and choroid plexus
D K, Robson, J W, Ironside, W A, Reid, P R, Bogue   +3 more
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Central nervous system neoplasms in AIDS

2005
Abstract Intracranial mass lesions are common in human immunodeficiency virus (HIV)-infected individuals, especially those with the acquired immune deficiency syndrome (AIDS). Distinguishing infectious etiologies from neoplasia is challenging and should not be done on the basis of routine imaging studies alone.
Alexis Demopoulos, Lauren Abrey
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Central nervous system neoplasms

2022
Ibrahim Natalwala, Ammar Natalwala, E Glucksman   +2 more
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Central Nervous System Neoplasms: Indications for Electron Microscopy

Ultrastructural Pathology, 1996
Diagnostic dilemmas of biopsy specimens in the central nervous system (CNS) tumors are often the result of multiple factors, including fixation artifact, biopsy size, lack of immunohistochemical techniques to distinguish cell types, and unawareness of rare entities.
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Primary central nervous system lymphoma: Rare neoplasm?

2012
Purpose: -Review the current situation of primary central nervous system lymphoma (PCNSL) in the immunocompetent population. -Analyzing the findings of image that can help us in the differential diagnosis by means of the retrospective of five cases of our...
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