Multifocal brain radionecrosis masquerading as tumor dissemination

Malignant Gliomas: MR Imaging Spectrum of Radiation Therapy- and Chemotherapy-induced Necrosis of the Brain after Treatment

“…Several articles (12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26) on the imaging findings of adverse effects of therapeutic radiation to the brain have been published. Van Tassel et al (23) described MR findings of brain injury after accelerated fractionation radiation therapy combined with carboplatin chemotherapy for the treatment of malignant gliomas.…”

Middle Cerebral Artery Stenosis Associated with Moyamoya Pattern Collateralization

“…(Fukawa et al, 1981, 1982; Morii et al, 1988; Sameshima et al, 2000; Seki et al, 2001) There are only two such reports in non-Japanese patients. (Zulch et al, 1974; Walsh et al, 1984) We report three patients with isolated middle cerebral artery stenosis or occlusion associated with moyamoya pattern collateralization in Caucasian patients.…”

“…In this description a Caucasian patient was found to have carotid siphon stenosis as well as a middle cerebral artery occlusion and went on to develop a moyamoya pattern of collateralization 23 months later. (Zulch et al, 1974) The only report of isolated middle cerebral artery stenosis associated with moyamoya pattern collateralization in a non-Japanese patient was provided by Walsh et al (1984) In this description a 12-year old Caucasian girl presenting with subarachnoid hemorrhage and a hematoma in the pineal region was found to have an arterial rete surrounding an occlusion of the left middle cerebral artery (Walsh et al, 1984). It is thought by Suzuki and Takaku (1969) that moyamoya disease is an acquired phenomenon that starts with progressive stenosis of the terminal internal carotid artery.…”