Cancer de recto y ano ok
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CÁNCER DE
RECTO Y ANO
Dra. Edda Leonor Velásquez Gutiérrez
Medicina Interna
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CÁNCER DE RECTO
PRINCIPIOS Y PRÁCTICA DE ONCOLOGÍA, (VINCENT V. DEVITA JR., SAMUEL HELLMAN, STEVEN A. ROSENBERG, 5a. EDICION, VOLUMEN 1, EDITORIAL MEDICA PANAMERICANA, PÁGS. 1197-1251
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PR
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CÁNCER DE RECTO
PRINCIPIOS Y PRÁCTICA DE ONCOLOGÍA, (VINCENT V. DEVITA JR., SAMUEL HELLMAN, STEVEN A. ROSENBERG, 5a. EDICION, VOLUMEN 1, EDITORIAL MEDICA PANAMERICANA, PÁGS. 1197-1251
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DRENAJE LINFÁTICO
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MECANISMOS DE CONTROL NEUROMUSCULAR
PRINCIPIOS Y PRÁCTICA DE ONCOLOGÍA, (VINCENT V. DEVITA JR., SAMUEL HELLMAN, STEVEN A. ROSENBERG, 5a. EDICION, VOLUMEN 1, EDITORIAL MEDICA PANAMERICANA, PÁGS. 1197-1251
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DIAGNÓSTICO
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DIAGNÓSTICO
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EVALUACIÓN RADIOLÓGICA
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SISTEMA DE ESTADIFICACIÓN CLÍNICA
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CLASIFICACION DE DUKES.
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ASTLER Y COLLER
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CLASIFICACION T.N.M.
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CLASIFICACION T.N.M.
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CLASIFICACION T.N.M.
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CLASIFICACION T.N.M.
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DISEMINACION
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PR
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TRATAMIENTO DE CÁNCER COLORRECTAL RESECABLE
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TERCIO SUPERIOR
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TERCIO MEDIO
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TERCIO INFERIOR
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PR
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PR
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PR
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MORBI-MORTALIDAD DE
LA CIRUGIA RADICAL
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TRATAMIENTO LOCAL PARA CANCER RECTAL
VIAS DE ACCESO TRANSANALES
• EXCISION TRANSANAL.• FULGURACION.• RADIOTERAPIA ENDOCAVITARIA.
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TRATAMIENTO LOCAL PARA CANCER RECTAL
• VIAS DE ACCESO POSTERIORES
• Extirpación Trans-sacral (procedimiento de Kraske) = Excisión perineal por encima del ano, se retira el cóccix y se divide la fascia. Se moviliza el recto y se realiza amplia excisión o resección en manguito.
• Extirpación Trans-esfinteriana (procedimiento de York Mason)
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EXTENSION DE LA RESECCION QUIRURGICA
• MARGENES MUCOSOS DISTALES (3cms)
• GANGLIOS LINFATICOS PROXIMALES(Bif. Aórtica)
• GANGLIOS LINFATICOS DISTALES.(Excisión completa del Mesorrecto)
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CÁNCER
DE ANO
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CANCER ANAL• Los cánceres anales son aproximadamente 30 veces menos
que el cáncer colorectal.
• El tipo mas común es el Ca epidermoide, con mucha menos frecuencia puede aparecer el melanoma.
• Se da frecuentemente en la cuarta década de la vida y a predominio del sexo masculino.
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ANATOMIA CANAL ANAL
(anillo anorrectal )
MARGEN ANAL
LINEA DENTADA (epitelio columnar, epitelio
escamoso )
LINEA ANOCUTANEA
(epitelio escamoso, piel )
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ANATOMIA
• A. HEMORROIDAL SUP, MEDIA, INF.
• FIBRAS SIMPATICAS Y PARASIMPATICAS SACRAS.
• GANGLIOS INGUINALES, PELVICOVISCERALES E HIPOGASTRICO
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ETIOLOGIA.• PAPILOMAVIRUS
• FISTULAS ANALES.
• FISURAS ANALES.
• INMUNODEPRESION.
• RADIOTERAPIA.
• HERPES SIMPLE
• MULTIPLES PAREJAS SEXUALES.
• FUMADORAS
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CARCINOMA EPIDERMOIDE
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CARCINOMA EPIDERMOIDE
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SINTOMATOLOGIA
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DIAGNOSTICO
• TACTO RECTAL.
• USG TRANS-RECTAL.
• ANOSCOPIA.
• BIOPSIA.
• TAC ABDOMINAL Y PELVICO.
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METASTASIS• METASTASIS HEPATICA 5-8%
• PULMON 2-4%.
• HUESO 2%
• LAS METASTASIS DEL CANCER DEL MARGEN ANAL SON INFRECUENTES.
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FACTORES PRONOSTICOS
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TRATAMIENTO
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GRACIAS