Cáncer de colon Flashcards

1
Q

Tenias

A

Bandas de músculo liso

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2
Q

Haustras

A

Sáculos de la pared del colon

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3
Q

Apéndices epiploicos

A

Sacos grasos

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4
Q

Colon derecho

A

Post
- M. iliaco
- Cuadrado lumbar
- Transverso del abdomen
Ant
- Intestino delgado
- Borde derecho del epiplón

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5
Q

Colon transverso

A
  • Más móvil
  • 20.25 cm
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6
Q

Colon izquierdo

A
  • Mide 25 cm
  • Más estrecho
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7
Q

Colon sigmoides

A
  • Suspendido por el mesocolon
    Izq:
  • Se conecta con la arteria iliaca
  • Arterias sigmoideas
    Derecha:
  • Conecta con la capa externa del sacro
  • En el receso intersigmoideo está el ureter
  • Entra la arteria rectal sup.
  • Se divide en arteria mesentérica inferior
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8
Q

Capas del colon

A
  • Mucosa
  • Submucosa
  • Muscular (Circular interna, longitudinal)
  • Serosa
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9
Q

Irrigación

A

Mesentérica sup:
- Cólica derecha
- Cólica media
- Iliocólica
Mesentérica inf:
- Marginales
- Cólica izq
- Sigmoidea

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10
Q

Drenaje

A

Mesentérica sup e inf = Porta

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11
Q

Factores de riesgo

A
  • Hereditarios: Poliposis
  • No modificables: Enfermedades inflamatorias intestinales
  • Modificables: Dieta y tabaquismo
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12
Q

Patogénesis

A

Adenomas: No pasan la lámina propia
Carcinoma: Sí la pasan

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13
Q

Síntomas

A

Izq, derecho
- Dolor 60%, 80%
- Tumor palpable 40%, 70%
- Sangrado 20%, 20%
- Cambios en hábitos deposicionales 60%, 40%
- Pérdida ponderal 15%, 50%
- Vómito 10%, 30%
- Obstrucción 20%, 5%

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14
Q

Detección temprana

A
  • Expolaración rectal
  • Sangre oculta en heces
  • Imagen (Enema de bario, TAC abdominal contrastada)
  • Endoscopía (Gold standard): Sigmoidoscopía, colonoscopía
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