reação leucemoide e anemia hemolítica grave causada por mycoplasma pneumoniae leukemoid reaction and severe hemolytic anemia due to mycoplasma pneumoniae
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ID: 162858
2010
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Abstract
Hemólise massiva é uma manifestação rara da infecção por Mycoplasma pneumoniae.É desencadeada por crioaglutininas, anticorpos IgM, que surgem sete a dez dias após a infecção em cerca de 50% a 75% dos casos. Hiperleucocitose é também evento incomum e orienta o diagnóstico para etiologia bacteriana ou neoplásica. Relatamos um caso de um homem de 67 anos com pneumonia por Mycoplasma pneumoniae, que apresentou anemia grave e reação leucemoide, diagnosticada por meio do teste de crioaglutininas à beira do leito e dosagem do título de anticorpo anti-mycoplasma. Após início do tratamento adequado, houve melhora importante da anemia e a leucometria foi reduzida de 56.100/mm³ para valores próximos do normal.
Massive hemolysis, a rare manifestation of Mycoplasma pneumoniae infection, is due to cold agglutinins (IgM antibodies) that appear seven to ten days after the infection in around 50% to 70% of cases. Hyperleukocytosis, suggestive of bacterial or neoplastic etiologies, is also an uncommon event. We report here on the case of a 67-year-old man with Mycoplasma pneumoniae pneumonia who presented with severe anemia and leukemoid reaction as diagnosed by the bedside cold agglutinin test and measurement of anti-mycoplasma antibodies. After beginning appropriate treatment, the anemia improved significantly and the leukocyte count reduced from 56100 /mm³ to close to normal level.
Massive hemolysis, a rare manifestation of Mycoplasma pneumoniae infection, is due to cold agglutinins (IgM antibodies) that appear seven to ten days after the infection in around 50% to 70% of cases. Hyperleukocytosis, suggestive of bacterial or neoplastic etiologies, is also an uncommon event. We report here on the case of a 67-year-old man with Mycoplasma pneumoniae pneumonia who presented with severe anemia and leukemoid reaction as diagnosed by the bedside cold agglutinin test and measurement of anti-mycoplasma antibodies. After beginning appropriate treatment, the anemia improved significantly and the leukocyte count reduced from 56100 /mm³ to close to normal level.
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| Authors | ;Kléber G. Luz;Roberto M. Mendonça;Ricardo H. M. Félix;Tásia A. F. Feitosa;Telma C. B Freire |
| Journal | journal of computational and graphical statistics : a joint publication of american statistical association, institute of mathematical statistics, interface foundation of north america |
| Year | 2010 |
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