Clinical question: Subarachnoid hemorrhage. Signs and symptoms: Right-sided weakness. Unenhanced head CT:Examination demonstrates a large area of vasogenic edema in high convexity left frontal lobe with resultant effacement of adjacent cortical sulci.Within the region of vasogenic edema there is a superficially located mass measuring approximately 14.3 x 11.5-mm in transaxial dimensions on axial image 22. The prior measurements of this tumor on prior enhanced MRI on 6 -- 9 -- 11 there is 12.6 x 11 0.7-mm in size. This mass demonstrate mildly high-density which may represent minimal internal hemorrhage. There are no prior head CTs for comparison of the density of this mass. There in no evidence of parenchymal or subarachnoid hemorrhage or mass effect on the left lateral ventricle or midline shiftOther than the above described findings the study is unremarkable and in particular no additional similar abnormalities are identified.
1.Left precentral frontal lobe tumor with minimal internal high density measuring 14.3 x 11.5-mm with extensive surrounding vasogenic edema. The higher than brain parenchyma density of this tumor may represent minimal internal hemorrhage.2.Surrounding vasogenic edema and resultant effacement of the adjacent cortical sulci.3.No evidence of parenchymal or subarachnoid hemorrhage, midline shift or hydrocephalus.