Legend Axial T2WIs show a thin rim of dark T2 signal outlining the brain parenchyma, including the medulla and the pons. Right maxillary sinus mucous retention cyst.

Legend Axial T2WIs again show thin rim of dark T2 signal outlining the brain parenchyma, pons and the cervical cord. Key words: mri hemorrhage vascular

Brain Diagnosis: Pial siderosis - Patient was on coumadin for 10 years