Leucemia mieloblástica aguda Flashcards

1
Q

Def

A

enfermedad clónale y maligna del tejido hematopoyetico

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2
Q

características

A

proliferación anormal de cell blásticas, + en MO
insuficiencia hematopoyética (anemia, neutropenia, trombocitopenia)
con o sin leucos

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3
Q

Epidemio

A

enfermedad de adultos
15% leucemias en niños
80% enn adultos

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4
Q

LMA con traslocaciones citogenéticas recurrentes (4)

A
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5
Q

Clasificación (WHO)

A
  1. LMA con traslocaciones citogeneticas recurrentes
  2. LMA con displasia multilineal
  3. LMA y SMD relacionadas con tx
  4. LMA no categorizada
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6
Q

Factores predisponentes

A

ambientales
enfermedades adquiridas (enfermedades clónales hematopoyéticas u otras)
enfermedades congénitas

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7
Q

Sx se desarrollan de la insuficiencia medular e invasión a tejidos normales x cell blásticas:

A

anemia
trombocitopenia
neutropenia
sarcoma granulocítico
infiltraciones específicas

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8
Q

que encontramos en el lab en BH

A

anemia
neutropenia
trombocitopenia
cuenta de reticulocitos baja
mieloblastos

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9
Q

AMO que vemos?

A

20% o + de bastos mieloides
tinciones (mieloperoxidasa, esteras, sudám negro, PAS)
Ag de superficie
estudios de cromosomas
cultivos celulares

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10
Q

alteraciones citogenéticas

A

t(8;21)
inv(16)
t(16;16)
t(15;17)

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11
Q

factores pronósticos

A

cariotipo desfavorable
+ 60a
LMA secundaria
status performance bajo
resistencia multidrogas +
leucos 20,000 /mm3
DHL elevada

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12
Q

buen pronos

A

t (8:21)

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13
Q

tx con quimio inducción a la remisión

A
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14
Q

tx con quimio terapia post-remisión

A
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15
Q

tx?

A

7+3

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