pre eclampsia with severe headache No evidence of acute ischemic or hemorrhagic lesion.Diffuse pachymeningeal enhancement was demonstrated on post Gad enhancement images.Differential diagnosis include; post lumbar puncture status, pachymeningitis, pachymeningeal metastasis and intracranial hypotension.The ventricles, sulci and cisterns are symmetric and unremarkable. The gray-white matter differentiation is normal. There is no mass, mass effect, edema, midline shift, intra or extra-axial fluid collection/hemorrhage, restricted diffusion/acute ischemia. The midline structures and cranial-cervical junction are normal. Normal flow voids are identified in the major intracranial vessels. The mastoid air cells are clear.Left maxillary sinus opacification with atrophic changes.
1. Diffuse pachymeningeal enhancement as described above; possible underlying diagnosis include post LP status, pahcymeningitis, granulomatous disease, carcinomatosis or intracranial hypotension.2. No evidence of acute ischemic or hemorrhagic lesion.