Carcinomatous encephalitis (miliary metastases): lack of contrast enhancement.
Carcinomatous encephalitis is a rare form of brain metastasis in which there is diffuse miliary spread of punctate tumor nodules in a perivascular distribution. In this case, these tiny tumor nodules were seen throughout the cortical and basal gangliar gray matter only on T2-weighted images. Contrast-enhanced CT and T1-weighted MR images did not demonstrate these tumor nodules.
Nemzek
W
W
Department of Radiology, University of California Davis Medical Center, Sacramento 95817.
Poirier
V
V
Salamat
M S
MS
Yu
T
T
D001921:Brain / Q000000981:diagnostic imaging / Q000473:pathology; D001932:Brain Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000556:secondary*; D003287:Contrast Media; D004660:Encephalitis / Q000473:pathology; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D014057:Tomography, X-Ray Computed
D003287:Contrast Media