rabdomiosarcoma Flashcards

1
Q

rabdomiosarcoma es

A

sarcoma mas frecuente en musculo pediátrico

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2
Q

rabdomiosarcoma maligno se divide en

A

embrionario +, alveolar, pleomorfico y esclerosante

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3
Q

rabdomiosarcoma embrionario se presenta en

A

<6años
tipo boitroide en coledoco, ano, nariz y vagina
no anaplasico +
anaplasico le va muy mal

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4
Q

rabdomiosarcoma embrionario puede ser

A

esporádico y asociado a sd

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5
Q

embrionario anaplasico se asocia a

A

alteración de p53 anaplasico

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6
Q

embrionario se asocia a sd

A

costello
NF1
SBW
Li Fraumeni
DICER

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7
Q

Sd de costello es causado por

A

mutaciones en HRAS

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8
Q

los px son sd de costello son

A

frente prominente, ojos grandes, boca grande con labios gruesos, articulaciones laxas, problemas cardiacos y mayor riesgo de tumores

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9
Q

en histologia rabdomiosarcoma embrionario se ve como

A

células de renacuajo
se suelen ver estrias musculares y ua linea de cambio

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10
Q

embrionario histologia en anaplasico se ve

A

células grandes

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11
Q

rabdomiosarcoma esclerosante se presenta en

A

niños rande sy adolescentes
parameningeo y paratesticular

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12
Q

rabdo esclerosante se ve

A

células grandes alargadas con estroma rosado

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13
Q

dxdx de esclerosante es

A

tumor germinal

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14
Q

rabdo alveolar se presenta en

A

15a
extremidades, perianal, paraespinal y cabeza y cuello

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15
Q

las mutaciones de rabdo alveolar son

A

2:13 (q36q14)mas comun peor pronostico
1:13 (p36q14) mejor pronostico

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16
Q

histologicamente rabdo alveolar se ve como

A

alveolos

17
Q

rabdomiosarcoma peomorfico es

A

en adultos

18
Q

cuando se sospecha de un rabdo pleomorfico en pediatricos

A

se trata de un radio embrionario anaplasico p53

19
Q

dxdx de rabdiomiosarcoma es

A

neuroblastoma, sarcoma de Ewing, angiosarcoma podo diferenciado, sarcoma granulocitico, linfoma y sarcoma sinovial