Bone Marrow Failure Syndromes including Aplastic Anemia and Myelopysplasia Flashcards

1
Q

MDS são caracterizados por:

A

1 - Citopénias por falência medula óssea

2 - Risco elevado de desenvolvimento de Leucemia Mieloide Aguda

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2
Q

Causas de Mielotesis Cmielofrobrose secundária)

A

1 - Invasão por células tumorais ( Cancro da mama, pulmão, prostata ou neuroblastoma)
2 - Infeção (micobactérias tuberculosis e avium, fungos, HIV)
3 - Sarcoidose
4 - Doença Gaucher’s
5 - Osteopetrosis congénita
6 - Radioterapia e Fármacos radiomiméticos
7 - Sind. Hematológicos (LMC, MM, Linfoma, mieloma, Leucemia de células peludas)

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3
Q

Patofisiologia da Mielotesis

A

1 - proliferation of fibroblasts in the marrow space (myelofibrosis);
2 - the extension ofhematopoiesis into the long bones and into extramedullary sites,usually the spleen, liver, and lymph nodes (myeloid metaplasia);
3 - ineffective erythropoiesis.

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