Intestinal ObstructionIntestine, SmallIleal DiseasesBezoarsIntestinesAirway ObstructionJejunal DiseasesIntussusceptionIntestinal AtresiaDuodenal ObstructionMesenteric CystUreteral ObstructionColonic DiseasesMeconiumIntestine, LargeMeckel DiverticulumHirschsprung DiseaseLaparotomyIleal NeoplasmsTissue AdhesionsIleusCecal DiseasesHerniaIntestinal Pseudo-ObstructionIntestinal VolvulusHernia, AbdominalTuberculosis, GastrointestinalIleumIleocecal ValveRadiography, AbdominalDuodenal DiseasesDigestive System Surgical ProceduresJejunumLipomaJejunal NeoplasmsIntestinal PerforationMesocolonIntestinal DiseasesFecal ImpactionColon, SigmoidAbdomen, AcuteAbdominal PainColon, AscendingUrinary Bladder Neck ObstructionUrethral ObstructionNasal ObstructionEntomophthoralesDuodenumEnemaVitelline DuctGastric Outlet ObstructionIntestinal FistulaForeign BodiesPeritoneal DiseasesHernia, ObturatorIleostomyColaCecal NeoplasmsVentricular Outflow ObstructionPetrolatumIntestinal MucosaGangreneIntestinal NeoplasmsColonic Pseudo-ObstructionAscariasisDuodenostomySurgical SpongesDiverticulumBarium SulfateSuperior Mesenteric Artery SyndromeColostomyVomitingAscaris lumbricoidesEnteritisPostoperative ComplicationsAbdominal NeoplasmsTreatment OutcomeDigestive System AbnormalitiesAnastomosis, SurgicalDiospyrosLaparoscopyCystic FibrosisTomography, X-Ray ComputedAbdomenSclerosisJejunostomyLacrimal Duct ObstructionIntubation, GastrointestinalHerniorrhaphyInfant, NewbornGastrointestinal MotilityRectumInfant, Newborn, DiseasesPelvic NeoplasmsConstipationAppendicitisColectomyRetrospective StudiesBrunner GlandsNigeria