Small Colon Intestinal Atresia Basic Information Definition Complete and abnormal congenital occlusion of the foal intestine Synonym(s) Atresia ani, atresia recti, atresia coli (large colon, transverse colon, or small colon) Epidemiology Species, Age, Sex Affects foals Genetics and Breed Predisposition Rare condition Associated Conditions and Disorders Condition has been associated with other congenital abnormalities, such as renal agenesis, dysplasia or hypoplasia, absence of a tail, micro-ophthalmia, rectourethral fistula, cerebral gliomata, cerebellar dysplasia, hydrocephalus, dermal hemangioma, ventricular septal defect, common truncus arteriosus, or schistosomas reflexus. Clinical Presentation Disease Forms/Subtypes • Type 1: Atresia or membranous atresia Diaphragm or membrane occludes the intestine • Type 2: Atresia or cord atresia Proximal and distal blind ends are joined by a cord of connective tissue with or without a mesentery • Type 3: Atresia or blind end atresia Proximal and distal blind segments are completely separated with no mesentery History, Chief Complaint The condition normally becomes apparent a few hours after birth • Colic • Depression • Tympany • Absence of feces • No response to enemas • Tenesmus • Tail flagging Physical Exam Findings • Temperature variable • Often tachycardic • Sometimes depressed and lethargic • Mucous membranes variable: may be pale pink and moist but most commonly hyperemic and tacky • Colic signs • Absence of meconium passage or perianal staining • Variable hydration Etiology and Pathophysiology • Unknown • Possible association with a simple recessive gene • Possible developmental arrest • Possible vascular compromise to the fetal gut Diagnosis Differential Diagnosis • Small colon intussusception • Meconium impaction< div class='tao-gold-member'> Only gold members can continue reading. Log In or Register to continue Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Related posts: Abdominocentesis Tendinitis and Desmitis Pericardial Disease Splenic Rupture Stay updated, free articles. Join our Telegram channel Join Tags: Clinical Veterinary Advisor The Horse Jul 24, 2016 | Posted by admin in SMALL ANIMAL | Comments Off on Small Colon Full access? Get Clinical Tree
Small Colon Intestinal Atresia Basic Information Definition Complete and abnormal congenital occlusion of the foal intestine Synonym(s) Atresia ani, atresia recti, atresia coli (large colon, transverse colon, or small colon) Epidemiology Species, Age, Sex Affects foals Genetics and Breed Predisposition Rare condition Associated Conditions and Disorders Condition has been associated with other congenital abnormalities, such as renal agenesis, dysplasia or hypoplasia, absence of a tail, micro-ophthalmia, rectourethral fistula, cerebral gliomata, cerebellar dysplasia, hydrocephalus, dermal hemangioma, ventricular septal defect, common truncus arteriosus, or schistosomas reflexus. Clinical Presentation Disease Forms/Subtypes • Type 1: Atresia or membranous atresia Diaphragm or membrane occludes the intestine • Type 2: Atresia or cord atresia Proximal and distal blind ends are joined by a cord of connective tissue with or without a mesentery • Type 3: Atresia or blind end atresia Proximal and distal blind segments are completely separated with no mesentery History, Chief Complaint The condition normally becomes apparent a few hours after birth • Colic • Depression • Tympany • Absence of feces • No response to enemas • Tenesmus • Tail flagging Physical Exam Findings • Temperature variable • Often tachycardic • Sometimes depressed and lethargic • Mucous membranes variable: may be pale pink and moist but most commonly hyperemic and tacky • Colic signs • Absence of meconium passage or perianal staining • Variable hydration Etiology and Pathophysiology • Unknown • Possible association with a simple recessive gene • Possible developmental arrest • Possible vascular compromise to the fetal gut Diagnosis Differential Diagnosis • Small colon intussusception • Meconium impaction< div class='tao-gold-member'> Only gold members can continue reading. Log In or Register to continue Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Related posts: Abdominocentesis Tendinitis and Desmitis Pericardial Disease Splenic Rupture Stay updated, free articles. Join our Telegram channel Join Tags: Clinical Veterinary Advisor The Horse Jul 24, 2016 | Posted by admin in SMALL ANIMAL | Comments Off on Small Colon Full access? Get Clinical Tree
