title: Gadolinium leakage into subarachnoid space and cystic metastases.
abstract: Subarachnoid space (SAS) and cystic metastatic lesions of brain parenchyma appear hypointense on fluid-attenuated inversion-recovery (FLAIR) and T1-weighted magnetic resonance imaging (MRI) unless there is a hemorrhage or elevated protein content. Otherwise, delayed enhancement and accumulation of contrast media in SAS or cyst of metastases should be considered. We present hyperintense SAS and cystic brain metastases of lung cancer on FLAIR and T1-weighted MRI, respectively, in a patient who had been previously given contrast media for imaging of spinal metastases and had mildly impaired renal functions, and discuss the relevant literature.
authors: Department of Radiology, Hacettepe University School of Medicine, Ankara, Turkey. aelcindr@gmail.com
authors: Adalet Elçin
authors: AE
authors: Yıldız
authors: Eray
authors: E
authors: Atlı
authors: Kader Karlı
authors: KK
authors: Oğuz
mesh_terms: D001921:Brain / Q000473:pathology; D001932:Brain Neoplasms / Q000175:diagnosis* / Q000556:secondary; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D003287:Contrast Media; D003937:Diagnosis, Differential; D005119:Extravasation of Diagnostic and Therapeutic Materials / Q000175:diagnosis* / Q000473:pathology; D019786:Gadolinium DTPA; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D008175:Lung Neoplasms / Q000473:pathology; D008297:Male; D008875:Middle Aged; D013125:Spinal Neoplasms / Q000175:diagnosis* / Q000556:secondary; D013346:Subarachnoid Space / Q000473:pathology
chemical_list: D003287:Contrast Media; D019786:Gadolinium DTPA