Open AccessComputed tomography; the anatomic basis of the zone of diminished density surrounding meningiomas
Author(s) -
Richard M. Sigel,
Albert V. Messina
Publication year - 1976
Publication title -
american journal of roentgenology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.294
H-Index - 196
eISSN - 1546-3141
pISSN - 0361-803X
DOI - 10.2214/ajr.127.1.139
Subject(s) - medicine , pneumoencephalography , subarachnoid space , computed tomography , tomography , meningioma , radiology , anatomy , pathology , cerebrospinal fluid
Computed tomography of meningiomas often demonstrates a zone of diminished density surrounding the actual tumor. This zone may be related to widening of the subarachnoid space, cerebral edema, tissue necrosis, or demyelination. A case is presented in which the anatomic basis of the zone of diminished density was shown on pneumoencephalography and at surgery to be an enlarged subarachnoid space.