Item 314 - Syndromes myeloproliferatifs Flashcards

1
Q

LMC

A

leucemie myeloide chronique&raquo_space; hyperleucocytose avec myelemie

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2
Q

maladie de Vasquez

A

atteinte preferentielle de la ligne rouge/erythroblastique&raquo_space; polyglobulie

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3
Q

thrombocytemie

A

atteinte ligne megacaryocytaire&raquo_space; hyperplaquettose

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4
Q

myelofibrose primitive

A

= splenomegalie myeloide&raquo_space; fibrose (hyperproduction) medullaire

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5
Q

une numeration plaquettaire > 1000000/mm3 - pathognomonique dla TE

A

faux

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6
Q

acutisation

A

przejście, wszystkie&raquo_space; leukemie aigue

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7
Q

taux des plaquettes a TE

A

> 450 000/mm^3, normalmenet > 1mln/mm^3, ale nie jest to patognomoniczne

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8
Q

esperance de vie:

A
  • TE ne modifie pas l’esperance de vie
  • MV: survie mediane 14-24 ans

ET

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9
Q

evoquer Vasquez (rubra)&raquo_space; criteres majeurs (2)

A
  1. KONIECZNE:
    - hemocrite > 47% - F ; Hb > 16,5
    - hemocrite >54% - M ; Hb > 18,5
    - ou augmentation du volume globulaire de plus de 25 % par rapport à la normale
  2. mutation JAK2 V617F
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10
Q

criteres mineurs (Vasquez)

A
  • biopsie osteomedullaire
  • EPO bas
  • pousse spontanée des progéniteurs érythroblastiques
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11
Q

BCR-ABL

A

t(9;22)(q34.1;q11.2)

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12
Q

scan TAP

A

scanner thoracico-abdomino-pelvienne

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13
Q

diagnosis TE (WHO)

A
  • platetels > 450giga
  • bone marrow biopsy - proliferation, no siginificant left shift of neutrophil granulopoeisos / erythropoesis
  • not meeting WHO criteria for PV, PMF, BCR-ABL, CML, MDS or other myeloid neuoplasm
  • mutation of JAK2V617F or other clonal marker, or in the abscence - no signs of reactive thrombocytosis
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14
Q

mutation CALR (calreticuline)

A

PV - 0%
ET - 10%
PMF - 30%

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15
Q

mutation JAK2

A

PV - 80%
ET - 72%
PMF - 30%

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16
Q

ogromna splenomegalia

A

PMF - primary myelofibrosis !

17
Q

leczenie Vasquez

A
  • hydroxyurea
  • hydroxycarbamid

EF !! : myelofibrosis!