Article Figures & Data
Figures
- Fig 1.
CT scans obtained in 54-year-old woman with intracerebral amyloidoma.
A, Axial non-contrast enhanced CT scan of the brain reveals a hyperattenuated comet-shaped mass in the left posterior frontal white matter. Significant vasogenic edema is also present around the mass.
B, The mass enhances after administration of contrast material. Note the medial extension of the mass up to the lateral ventricular ependyma.
- Fig 2.
MR images obtained in 54-year-old woman with intracerebral amyloidoma.
A, The mass is hypointense on this axial T1-weighted image (551/5/2 [TR/TE/NEX]).
B, The mass is hypointense on this axial T2-weighted image (4110/110/2).
C, The mass is hyperintense on this T1-weighted postcontrast axial image.
Tables
Review of Cases of Cerebral Amyloidomas
Author and Year* Patient (no.)/ Age (y)/Sex Clinical Presentation Location No. of Lesions CT Findings MR Imaging Findings Angiographic Findings Saltykow, 1935 (5) 1/Unknown Psychiatric disturbances Cortex, WM M NA NA NA Harris and Rayport, 1979 (6) 2/28/F Focal seizures Frontal WM S Hyperattenuating mass on nonenhanced scans NA NA Spaar et al, 1981 (7) 3/46/F Visual loss, headache, depression WM M Hypoattenuating lesions, enhancement on contrast-enhanced scans, extension to the lateral ventricle NA Vascular displacements Townsend et al, 1982 (8) 4/47/F Cognitive decline Frontal/optic radiation, WM M Hyperattenuating mass on nonenhanced scans NA Absent venous filling in the affected region Townsend et al, 1982 (8) 5/50/M Visual field defects Occipital WM S Hyperattenuating mass with enhancement on contrast-enhanced scans NA NA Moreno et al, 1983 (9) 6/48/M R hemianopsia, L-arm weakness L occipital WM S Ring-enhancing lesion, extension to the lateral ventricle, thickened ependyma NA Normal Hori et al, 1988 (10) 7/60/M Headache, seizure, dementia L frontal, cerebellum, pons (WM) M NA NA NA Cohen et al, 1992 (11) 8/32/M Headache, seizure, decreased cognition Bilateral centrum semiovale WM, 1 cortical lesion M Hyperattenuating masses, contrast enhancement, extension to the lateral ventricle Hypointense on T1WI, mixed intensity on T2WI, faint enhancement NA Eriksson et al, 1993 (2) 9/76/M Seizure R parietal WM, extension to lateral ventricle and choroid plexus S NA NA Mass effect on the temporal horn of the lateral ventricle Schroder et al, 1995 (12) 10/70/F Ataxia, L-leg weakness, cognitive decline R subcortical parieto-occipital, 2 smaller lesions in the ventricular wall M Hyperattenuating, no edema, extension to the lateral ventricle NA Normal Lee et al, 1995 (3) 11/61/F Seizures, decreased mentation L parietal periatrial WM S Hyperattenuating, partially calcified, no edema Hyperintense on T1WI, mixed intensity on T2WI, marked enhancement, no edema, extension to the lateral ventricle NA Caerts et al, 1997 (4) 12/71/F R pyramidal syndrome L deep periventricular WM S Hyperattenuating mass on nonenhanced scans, contrast enhancement, no edema Isointense on T1WI, hyperintense on T2WI, strongly enhancing, extension to the lateral ventricle NA Blatter et al, 2001 (22) 13/26/F R-hand paresis, dysarthria L parieto-occipital, smaller R-sided lesions M NA T1WI and T2WI appearance unknown, contrast enhancement, extension to the lateral ventricle NA Gandhi et al, 2003 (present case) 14/54/F Seizures L frontal WM, medial extension to the lateral ventricle S Comet-shaped hyperattenuating mass on nonenhanced scans, contrast enhancement, medial extension up to lateral ventricle wall Hypointense on T1WI and T2WI, strong contrast enhancement, surrounding edema NA Note.—L indicates left; M, multiple; NA, not applicable; R, right; S, single; T1WI, T1-weighted image; T2WI, T2-weighted image; and WM, white matter.
* Numbers in parentheses are reference numbers.
