Type III atresia coli with underdeveloped colon and hydroperitoneum in a newborn foal

EnglishA 48-hour-old mixed breed pony colt was referred to the hospital because of abdominal discomfort, weak suckling reflex and prostration. During clinical investigation, supportive and symptomatic treatments were necessary, and an abdominal radiography was performed revealing a large intestine filled with feces and large amounts of gas, in addition to free fluid in the cavity. After 3 days of treatment, the foal had not yet defecated, thus exploratory abdominal surgery was indicated, but the owners declined. Therefore, the foal was humanly euthanized. Post-mortem examination revealed complete absence of the pelvic flexure. Subsequent portions of the dorsal, transverse and small colons were intensely reduced. In addition, at the abdominal cavity there was 850 ml of yellowish translucent liquid. These findings are compatible with hydroperitoneum and type III atresia coli at the pelvic flexure, associated with underdevelopment of the dorsal, transverse and small colons portuguesUm ponei mestico de 48 horas de vida foi encaminhado ao hospital para avaliacao por desconforto abdominal, diminuicao do reflexo de succao e prostracao. Durante a investigacao clinica, tratamentos de suporte e sintomaticos foram necessarios, e radiografia abdominal foi realizada revelando colon maior repleto de fezes e grandes quantidades de gas, alem de fluido livre na cavidade. Apos tres dias de tratamento, o potro ainda nao havia defecado, sendo a laparotomia exploratoria indicada, mas os proprietarios recusaram. Portanto, o potro foi humanamente eutanasiado. O exame post-mortem revelou ausencia completa da flexura pelvica. Porcoes subsequentes dos colons dorsal, colon transverso e colon menor se apresentaram intensamente reduzidas. Alem disso, na cavidade abdominal havia 850 ml de liquido translucido amarelado. Esses achados sao compativeis com o hidroperitonio e a atresia coli tipo III na flexura pelvica, associados ao subdesenvolvimento dos colons dorsal, transverso e menor