title: Spontaneous involution of an intra-axial brain stem lesion: a case report.
abstract: This report describes the spontaneous involution of an intrinsic brain stem lesion whose clinical and MRI characteristics strongly suggest a tumor etiology. Nonoperative experiences with central nervous system tumors have shown that they may sometimes exhibit prolonged periods of dormancy. There are several reports of 'disappearing' CT lesions which have all been inflammatory, infective, or immunological. No histologically proven tumor has been shown to spontaneously involute, nor have 'disappearing' lesions been described for MRI.
authors.affiliation: Department of Neurosurgery, Hadassah Hebrew University Hospital, Jerusalem, Israel.
authors.forename: S
authors.initials: S
authors.lastname: Rao
authors.forename: S
authors.initials: S
authors.lastname: Constantini
authors.forename: J M
authors.initials: JM
authors.lastname: Gomori
authors.forename: T
authors.initials: T
authors.lastname: Siegal
authors.forename: F
authors.initials: F
authors.lastname: Epstein
mesh_terms: D001932:Brain Neoplasms / Q000175:diagnosis*; D001933:Brain Stem / Q000473:pathology*; D002675:Child, Preschool; D003287:Contrast Media; D005260:Female; D005500:Follow-Up Studies; D019786:Gadolinium DTPA; D006801:Humans; D008279:Magnetic Resonance Imaging; D009365:Neoplasm Regression, Spontaneous; D009460:Neurologic Examination; D009942:Organometallic Compounds; D004369:Pentetic Acid / Q000031:analogs & derivatives
chemical_list: D003287:Contrast Media; D009942:Organometallic Compounds; D004369:Pentetic Acid; D019786:Gadolinium DTPA