Imaging of patients with brain tumors with or without ICH. (A) MRI brain axial susceptibility weighted image demonstrating a right frontal brain metastasis with mild peripheral hemosiderin deposition (red arrowhead), consistent with chronic hemorrhage. (B) Noncontrast CT brain axial image revealing a peripherally hyperdense lesion (blue arrowhead) with surrounding confluent hypodensity in the left posterior frontal lobe, consistent with a brain metastasis and vasogenic edema. The hyperdense rim represents high cellularity within the tumor. (C) Noncontrast CT brain axial image showing left frontal postoperative change status after glioblastoma resection, with hypodense vasogenic edema and scattered foci of hyperdensity (yellow arrowhead) consistent with subacute blood products.