Headache [R51], Reason for Study: ^Reason: eval for hemorrhage, mass History: intractable HA No evidence of acute ischemic or hemorrhagic lesion.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, or abnormal contrast enhancement. 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. There is a retention cyst on the right maxillary sinus. Another T2 high signal and T1 low signal lesion within the right pterygoid process which is likely represent another retention cyst in an extension of sphenoid sinus. If clinically indicated, maxillofacial CT scan can be considered.
No evidence of acute ischemic or hemorrhagic lesion.No evidence of abnormal enhancement.