Patologia Ano Rectal
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PATOLOGIA PATOLOGIA ANORRECTALANORRECTAL
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ANATOMIAANATOMIA
• Cilindro de 3-4 cm que se extiende desde el orificio anal hasta la ampolla rectal.
• El canal anal se encuentra dividido en dos por la línea pectínea o
dentada
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Prurito Anal
-Crisis paroxísticas, de predominio nocturno, de picor en el ano y en la piel circundante al orificio anal.
-Predominio en los varones.
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CausasCausas
IdiopáticoIdiopático
SecundariosSecundarios
Enfermedades anorrectales
Iatrogénicas
Infecciones e infestaciones
Otras causas
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HEMORROIDES
La enfermedad hemorroidal dolor, prurito, prolapso, sangrado
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Tipos de Hemorroides
Hemorroides internasHemorroides internas Hemorroides externasHemorroides externas
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ClasificaciónClasificación
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Grado I Grado II Grado III
Grado IV
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Diagnóstico
Rectosigmoidoscopia flexible/rígida
Colonoscopia antes del tratamiento.
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Hemorroides externas
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Diagnóstico
Uno o varios nódulos subcutáneos
Dolorosos y duros al tacto
Recubiertos de piel edematosa
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Diagnóstico DiferencialºDiagnóstico Diferencialº
Caracteristicas Hemorroides internas Hemorroides externas
Localización Encima de la línea dentado
Debajo de la línea dentada
Plexo venoso Hemorroidal interno Hemorroidal externo
Drenaje Venoso Sistema Portal Sistema cava
Región externa Mucosa rectal Piel perianal
Fibras sensitivas NO DOLOR DOLOROSA
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FISURA ANAL
DefiniciónEs un desgarro en la mucosa del ano
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ETIOLOGIA
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anamnesis Inspección anal, mientras el
paciente realiza una maniobra de defecación
DIAGNÓSTICO
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ABSCESOS ANORRECTALES
Infecciones localizadas en los espacios adyacentes al ano y/o recto.
30-40
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zona hiperémica, indurada muy dolorosa a la presión.
CLINICA
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FÍSTULAS ANORRECTALES
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INSPECCION: INSPECCION:
DIAGNOSTICO
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PROLAPSO RECTAL
Prolapso rectal completo
Prolapso mucoso
Prolapso rectal interno
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Malestar perianal
sensación de evacuación incompleta
Tenesmo
Heces sanguinolentas
CLINICA
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