[Acute lymphoblastic leukemia an pericarditis (author's transl)]

In a brief communication a case of acute lymphoblastic leukemia is presented, of which the principal characteristics were: 1) An exceptional onset due to its pleuropericardial manifestations while the hemogram was normal. 2) A quick terminal evolution after a short and total remission. As far as authors know in Spain, this localization has never been described primarily and in consulted bibliography the appeared cases were always found in older patients. We call attention to the pericardial effusions of a large volume in children in which the diagnosis of classical pericarditis can't be quickly detected.