title: [Acute lymphoblastic leukemia presenting with multiple hemorrhagic brain metastases (case report)].
abstract: Intracranial metastases represent 7-17% of all brain tumors. Renal cell carcinoma, thyroid cancer, choriocarcinoma, melanoma, retinoblastoma, lung cancer and breast cancer have a propensity for producing hemorrhagic brain metastases. Leukemias have also been rarely reported to cause hemorrhagic brain metastases. We describe an 18-year-old girl diagnosed as acute lymphoblastic leukemia presenting with multiple hemorrhagic brain metastases. MRI demonstrated high signal intensity lesions on both T1- and T2-weighted images which were characteristic for extracellular methemoglobin and consistent with hemorrhagic metastases.
authors.affiliation: Sişli Etfal Eğitim ve Araştirma Hastanesi, Radyoloji Departmani, Istanbul, Turkey.
authors.forename: Ahmet M
authors.initials: AM
authors.lastname: Halefoğlu
authors.forename: Mehmet
authors.initials: M
authors.lastname: Ertürk
authors.forename: Alper
authors.initials: A
authors.lastname: Ozel
authors.forename: K Can
authors.initials: KC
authors.lastname: Calişkan
mesh_terms: D000293:Adolescent; D001932:Brain Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000556:secondary; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D020300:Intracranial Hemorrhages / Q000209:etiology* / Q000473:pathology; D007945:Leukemia, Lymphoid / Q000175:diagnosis* / Q000473:pathology; D008279:Magnetic Resonance Imaging