Colon, SigmoidSigmoid DiseasesSigmoid NeoplasmsIntestinal VolvulusDiverticulitis, ColonicDiverticulum, ColonCranial SinusesColostomyIntestinal PerforationIntestinal ObstructionColectomyMesocolonSuperior ColliculiVena Cava, SuperiorColonic DiseasesColonoscopyRectumMesenteric Artery, SuperiorIntestinal FistulaColonSinus Thrombosis, IntracranialSuperior Vena Cava SyndromeLaparoscopyCerebral Veins46, XX Disorders of Sex DevelopmentTomography, X-Ray ComputedSubcutaneous EmphysemaSigmoidoscopyColon, DescendingDiverticulitisSuperior Cervical GanglionCecal NeoplasmsTreatment OutcomeMesenteric CystRadiography, AbdominalRectal NeoplasmsSurgical StaplingBarium SulfateDiverticulumColonic Diseases, FunctionalMegacolonIntestine, LargeTransverse SinusesGangreneGastrointestinal MotilityColonic NeoplasmsConstipationProlapseEnemaAnastomosis, SurgicalColonic PolypsTime FactorsSurgically-Created StructuresMastoidMagnetic Resonance ImagingMediastinal EmphysemaAdenocarcinomaIntestinal PolypsDigestive System Surgical ProceduresMesenteric Artery, InferiorCystoscopesFatal OutcomeGastrointestinal HemorrhageIntestinal MucosaColitis, IschemicRectal DiseasesBrachytherapyPneumoperitoneumRetrospective StudiesThighAbdomen, AcuteCentral Nervous System Vascular MalformationsColonoscopesAbdominal PainUrinary Bladder FistulaDura MaterEndoscopy, GastrointestinalNeurokinin APostoperative ComplicationsEndometriosisDecompression, SurgicalForeign-Body Migration