English dictionary of cancer terms . 2015.
astrocytoma fibrillare — fibrillary astrocytoma an astrocytoma whose cells resemble fibrous astrocytes, usually a Grade I or Grade II astrocytoma found in the cerebrum of an adult, but occasionally occurring in the brainstem or cerebellum. A minority are malignant and… … Medical dictionary
Astrocytoma — Caption = Two images the above of which shows a normal brain and the below shows astrocytoma. OMIM = 137800 OMIM mult = MedlinePlus = eMedicineSubj = med eMedicineTopic = 2693 DiseasesDB = 29449 Astrocytomas are primary central nervous system… … Wikipedia
astrocytoma — A glioma derived from astrocytes. [G. astron, star, + kytos, cell, + oma, tumor] anaplastic a. intermediate grade a. characterized by increased cellularity, nuclear pleomorphism, mitoses, and variable … Medical dictionary
Pilocytic astrocytoma — Caption = OMIM = OMIM mult = MedlinePlus = eMedicineSubj = radio eMedicineTopic = 367 DiseasesDB = MeshID = D001254 Pilocytic astrocytoma, or juvenile pilocytic astrocytoma, is a brain tumor that occurs predominantly in children and involves the… … Wikipedia
anaplastic astrocytoma — a malignant to highly malignant form of astrocytoma that often degenerates into a glioblastoma; variously classified as a Grade II or a Grade III astrocytoma … Medical dictionary
diffuse cerebellar astrocytoma — a cerebellar astrocytoma that is solid, dense, and infiltrative and resembles a fibrillary astrocytoma; it occurs more frequently in adults and has a higher grade of malignant potential than a pilocytic astrocytoma … Medical dictionary
cerebellar astrocytoma — an astrocytoma in the cerebellum; the most common kind, the juvenile pilocytic a., has a low grade of malignancy, but a second variety, the diffuse cerebellar a., is of a higher grade … Medical dictionary
malignant astrocytoma — an astrocytoma of Grade III or Grade IV; see anaplastic a. and glioblastoma … Medical dictionary
juvenile pilocytic astrocytoma — a pilocytic astrocytoma found in the cerebellum in children, one of the most common juvenile brain tumors; it grows slowly and has a low grade of malignancy … Medical dictionary
pilocytic astrocytoma — an astrocytoma resembling the fibrillary type but with its fibrils arranged in parallel rows; its grade of malignancy is low. The most common kind is the cerebellar juvenile pilocytic a. In adults the pilocytic type is usually found in the… … Medical dictionary
