title: [T-cell lymphoproliferative disorder involving the central nervous system in two cases].
abstract: Lymphoproliferative disorder (LPD) sometimes occurs in immunosuppressive patients. B-cell proliferation is predominantly seen in patients with LPD and T-cell proliferation is rare. We here report two patients with T-cell LPD involving the central nervous system (CNS). A 7-year-old boy developed increased intracranial pressure and computed tomography showed a ring-enhanced mass lesion in the right frontal lobe. A 10-year-old boy developed gait disturbance and magnetic resonance imaging showed a non-enhanced lesion in the left parietal lobe. Radiological findings could not differentiate CNS-LPD from other intracranial diseases. Only histologic examination could diagnose LPD in both cases, and Epstein-Barr virus associated RNA was found in the infiltrated T-cell of the latter case. Although chemotherapy with antitumor agents was effective for remission of LPD in both cases, both patients died 3 years after their operations. As CNS-LPD shows rapid progression and frequently results in fatality, this disease requires immediate histologic diagnosis followed by extensive chemotherapy.
authors.affiliation: Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Inoha
authors.forename: T
authors.initials: T
authors.lastname: Inamura
authors.forename: S
authors.initials: S
authors.lastname: Ohga
authors.forename: T
authors.initials: T
authors.lastname: Hara
authors.forename: M
authors.initials: M
authors.lastname: Fukui
mesh_terms: D002490:Central Nervous System / Q000473:pathology*; D002648:Child; D002908:Chronic Disease; D003937:Diagnosis, Differential; D020031:Epstein-Barr Virus Infections; D006801:Humans; D016867:Immunocompromised Host; D008232:Lymphoproliferative Disorders / Q000175:diagnosis / Q000473:pathology* / Q000821:virology; D008297:Male; D013601:T-Lymphocytes / Q000473:pathology* / Q000821:virology