[Clinico-histological study of low-density non-enhancing glioma].
Some gliomas are not noticeably enhanced on initial computer tomography (CT) scans. Such low-density non-enhancing gliomas have a relatively long period between onset and surgery ranging from 5 to 25 months. The mechanism causing the low density over a certain period of time in the sequential CT findings was retrospectively investigated. Characteristic histological findings associated with such low-density areas were microcystic formation, necrosis, intratumoral edema, infiltrative growth, and absence of capillary proliferation. Proliferation of capillary vessels is characteristic of CT enhancement.
Maeda
T
T
Department of Neurosurgery, Kyorin University, Tokyo.
Nakadai
M
M
Asoh
Y
Y
Yokoyama
H
H
Ogashiwa
M
M
Takeuchi
K
K
Akai
K
K
D000293:Adolescent; D000328:Adult; D001932:Brain Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D002471:Cell Transformation, Neoplastic / Q000473:pathology; D005910:Glioma / Q000000981:diagnostic imaging / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011856:Radiographic Image Enhancement; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed