title: MR spectroscopy and perfusion MR imaging findings of intracranial foreign body granuloma: a case report.
abstract: We report a case of intracranial foreign body granuloma that showed features of a high grade tumor on magnetic resonance (MR) imaging. However, the relative cerebral blood volume was not increased in the enhancing mass on perfusion MRI and the choline/creatine ratio only slightly increased on MR spectroscopy. The results suggest that the lesion is benign in nature. Perfusion MRI and MR spectroscopy may be helpful to differentiate a foreign body granuloma from a neoplastic condition.
authors.affiliation: Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
authors.forename: Seung Won
authors.initials: SW
authors.lastname: Jang
authors.forename: Sang Joon
authors.initials: SJ
authors.lastname: Kim
authors.forename: Sun Mi
authors.initials: SM
authors.lastname: Kim
authors.forename: Jeong Hyun
authors.initials: JH
authors.lastname: Lee
authors.forename: Choong Gon
authors.initials: CG
authors.lastname: Choi
authors.forename: Deok Hee
authors.initials: DH
authors.lastname: Lee
authors.forename: Eun Ju
authors.initials: EJ
authors.lastname: Kim
authors.forename: Jung-Kyo
authors.initials: JK
authors.lastname: Lee
mesh_terms: D000328:Adult; D001810:Blood Volume; D001921:Brain / Q000473:pathology* / Q000601:surgery; D003287:Contrast Media; D003937:Diagnosis, Differential; D017352:Echo-Planar Imaging / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D005682:Gadolinium; D015745:Granuloma, Foreign-Body / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D018810:Magnetic Resonance Angiography / Q000379:methods*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*
chemical_list: D003287:Contrast Media; D005682:Gadolinium
references.citation: J Clin Neurosci. 2008 Apr;15(4):463-5
references.pmid: 18249117
references.citation: Arch Pathol Lab Med. 2004 Jul;128(7):749-58
references.pmid: 15214828
references.citation: J Neurosurg. 1998 May;88(5):928
references.pmid: 9576268
references.citation: NMR Biomed. 1999 May;12(3):139-44
references.pmid: 10414948
references.citation: AJNR Am J Neuroradiol. 2000 Feb;21(2):346-52
references.pmid: 10696022
references.citation: Neuroradiology. 2003 Feb;45(2):82-4
references.pmid: 12592488
references.citation: AJNR Am J Neuroradiol. 2008 Feb;29(2):366-72
references.pmid: 18055564
references.citation: Neuroradiology. 1987;29(5):497-9
references.pmid: 3683839
references.citation: J Neurosurg. 2001 Sep;95(3):503-6
references.pmid: 11565875