title: [Intravascular lymphoma treated with anti CD20 monoclonal antibodies. Report of one case].
abstract: We report a 78 year old male with prostatism, that was subjected to a prostate biopsy. The pathological study showed a microvascular lymphocytic infiltration. Four months later, the patients presented with reduced alertness, cough, dyspnea, fever and elevation of lactic dehydrogenase and erythrocyte sedimentation rate. Chest and abdominal CAT scans, bone marrow aspirate, protein electrophoresis and prostate specific antigen were normal. A re-evaluation of prostate biopsy showed an intravascular lymphoid infiltration, positive for CD45 and CD20, compatible with the diagnosis of intravascular lymphoma. Chemotherapy was started, but it was not tolerated by the patient and the response was partial. Therefore, treatment with monoclonal antibodies anti CD20 (Rituximab) was started. The tumor had a complete and prolonged (24 months) remission after the treatment
authors.affiliation: Laboratorio de Terapia Celular, Banco de Sangre, Hospital Clínico de la Universidad de Chile, Santiago de Chile. jalfaro@ns.hospital.chile.cl
authors.forename: Jorge
authors.initials: J
authors.lastname: Alfaro
authors.forename: Arturo
authors.initials: A
authors.lastname: Espinoza
authors.forename: María
authors.initials: M
authors.lastname: Manŕiquez
authors.forename: Leonor
authors.initials: L
authors.lastname: Moyano
authors.forename: Néstor
authors.initials: N
authors.lastname: González
authors.forename: Milton
authors.initials: M
authors.lastname: Larrondo
authors.forename: Gastón
authors.initials: G
authors.lastname: Figueroa
mesh_terms: D000368:Aged; D000911:Antibodies, Monoclonal / Q000627:therapeutic use*; D058846:Antibodies, Monoclonal, Murine-Derived; D018951:Antigens, CD20 / Q000032:analysis; D000970:Antineoplastic Agents / Q000627:therapeutic use*; D001706:Biopsy; D006801:Humans; D016403:Lymphoma, Large B-Cell, Diffuse / Q000188:drug therapy*; D008297:Male; D011470:Prostatic Hyperplasia / Q000473:pathology; D000069283:Rituximab; D019043:Vascular Neoplasms / Q000188:drug therapy* / Q000473:pathology
chemical_list: D000911:Antibodies, Monoclonal; D058846:Antibodies, Monoclonal, Murine-Derived; D018951:Antigens, CD20; D000970:Antineoplastic Agents; D000069283:Rituximab