Tumor GIST Flashcards

1
Q

Origem do tumor GIST?

A

Célula de Cajal e mutação gene KIT.

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2
Q

Sítios de metástase:

A

Fígado e peritônio.

Linfonodos são raros, logo a linfadenectomia não é indicada.

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3
Q

Tumor carcinoide origem celular?

A

Célula enterocromafim like.

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4
Q

Síndrome Carcinoide características e causa:

A

Rubor facial e torácico, ICC, diarreia e broncoconstricao causada pela liberação de serotonina de um tumor carcinoide avançado.

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5
Q

TTO cirúrgico em GIST maiores que 2 cm sem metástases?

A

Ressecçao segmentar.

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6
Q

Localização mais comum dos tumores estromais no TGI?

A

Estômago.

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7
Q

GIST localização histológica:

A

Camada muscular ou muscular da mucosa.

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8
Q

Se faz a biópsia ou a PAAF no GISF?

A

PAAF , evitando romper a cápsula do GISF. Fazer imunohistoquimica.

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9
Q

Gene no GISF:

A

CD17 (c-KIT).

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10
Q

GISF menores que 2 cm, conduta:

A

Acompanhamento clínico.

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11
Q

Mecanismo de ação do Imatinibe.

A

Inibidor da tirosina quinase, logo, usado em adjuvancia de c-kit positivo.

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12
Q

Dx:

A

GIST.

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13
Q

Quadro clínico e etiologia do GIST:

A
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14
Q

Genes mutados nos GIST e diferenciais:

A
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15
Q

Exames para Estadiamento do GIST e fatores prognóstico:

A
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16
Q

Tto do GIST:

A
17
Q

Resposta:

A

C.

18
Q

Quando fazer a adjuvancia do GIST com imatinibe?

A