We present here the unique image of toxoplasma encephalitis in a transplant recipient, characterized by the finding of T1-hypersignal foci. It is emphasized that cerebral toxoplasmosis after stem cell transplantation may show a high signal on T1-weighted images even without any hemorrhagic or calcified lesions.
SlavinMAMeyersJD: Toxoplasma gondii infection in marrow transplant recipients: a 20 year experience. Bone Marrow Transplant13: 549–557, 1994.
2.
Chandrasekar PH, Momin F and the Bone Marrow Transplant Team: Disseminated toxoplasmosis in marrow recipients: a report of three cases and a review of the literature. Bone Marrow Transplant19: 685–689, 1997.
3.
BrittonCB: Acquired immunodeficiency syndrome (AIDS). In: RowlandLP (ed): Merritt's Textbook of Neurology. Williams & Wilkins, Media: 179–193, 1995.
4.
BrightbillTCPostMJD: MR of Toxoplasma encephalitis: Signal characteristics on T2-weighted images and pathologic correlation. J Comput Assist Tomogr20: 417–422, 1996.
5.
WhitemanMLHBowenBC: Intracranial infection. In Magnetic resonance imaging of the brain and spine. AtlasSW (ed), Lippincott-Raven Publishers: 707–772, Philadelphia, 1996.
6.
RevelM-PGrayF: Hyperdense CT foci in treated AIDS toxoplasmosis encephalitis: MR and pathologic correlation. J Comput Assist Tomogr16: 372–375, 1992.
7.
MaschkeMDietrichU: Opportunistic CNS infection after bone marrow transplantation. Bone Marrow Transplant23:1167–1176, 1999.
8.
DietrichUMaschkeM: MRI of intracranial toxoplasmosis after bone marrow transplantation. Neuroradiology42:14–18, 2000.
9.
NaviaBAPetitoCK: Cerebral toxoplasmosis complicating the acquired immune deficiency syndrome: clinical and neuropathological findings in 27 patients. Ann Neurol19: 224–238, 1986.
10.
AtlasSWLaviE: Intra-axial brain tumors. In: AtlasSW (ed) Magnetic Resonance Imaging of the Brain and Spine2nd ed.Lippincott-Raven: 315–422, Philadelphia1996.