Congenital anomalies of small and large intestines, Biology

Congenital Anomalies of Small and Large Intestines:

1) Intussusecption 

Intussusecption  is the invagination or telescoping  of one part of  the intestine into another part of  the intestine just beyond it or distal to it leading to the impairment of blood supply and necrosis of involved segment (Fig. 2.9). It is the most common cause of  intestinal obstruction during the first two years of  life. There are  three  forms of  intussuception, ileocolic, ileoilac and colocolic. Of  these three, ileocolic  is most common  in which the ileum invaginates into the'cecum and then into the ascending:  colon.  


The cause is usually unknown. Predisposing factors include acute enteritis, meckel's diverticulum, parasites, constipation, foreign body,  inspissated fecal matter in cystic fibrosis, lymphoma and infection with rotavirus or adenovirus. 


Child will present with episodic abdominal pain, which can be assessed by kicking movement of legs and drawing them up towards abdomen, vomiting and rectal passage of bloody mucus; the current jelly stool, fever and prostration. Abdomen is tender and distended. lnitially the infant may be comfortable between episodes of pain but later on infant becomes weak and  lethargic and a shock like condition develops. Fever rises to 41°C. On palpation of abdomen, a sausage shaped mass may be felt in the right upper quadrant. On rectal examination a ring of  intestine may be felt if  the intussuscepting part has reached  to the rectum. Diagnostic evaluation includes barium enema that shows the intestinal obstruction and rectal examiniation reveals blood and mucus. 


When an upper portion of  the bowel invaginates into the lower portion, the mesentry  is carried into the lumen of the intesfine. The blood supply is cut off and necrosis and oedema occurs. This  results in  intestinal obstrucion. The end ol"  the invaginating part of intesting may extend into  transverse, descending or sigmoid colon or even to  the anus. There may be bleeding from the mucosa resulting in bloody stool. In some infants there may be spontaneous  teduction but in some cases strangulation of  the bowel may occur and child may have necrosis and perforation leading to peritonitis and death.  

Posted Date: 10/26/2012 7:43:26 AM | Location : United States

Related Discussions:- Congenital anomalies of small and large intestines, Assignment Help, Ask Question on Congenital anomalies of small and large intestines, Get Answer, Expert's Help, Congenital anomalies of small and large intestines Discussions

Write discussion on Congenital anomalies of small and large intestines
Your posts are moderated
Related Questions
Metastasis - Characteristics Define Cancer Metastasis is the capability of a malignant cell to detach itself from a tumor and establish a tumor in another site. This capabilit

Reproductive Organs In several metazoans, gonads are well-defined. Testes and ovaries take up dissimilar shapes and anatomical dispositions. In cases of certain hermaphrodites

Define about the Column chromatography? In column chromatography, a tube is filled with the material constituting the stationary phase, plus a solvent (mobile phase). The gener

Q. Explain about Long acting insulin? Long acting: Long acting insulin does not work until 4 Lo 8 hours after injecting. Its peak activity occurs 18 to 24 hours after injectio

what is respiration in animals ,its functions ,types of respiration

Q. What is the endocrine function of the placenta? The placenta is not a permanent gland of the endocrine system other than this it also has endocrinal function. The placenta p

Describe Pericardial Rub and their Characteristic ? Generation of sound: The sound is generated due to rubbing of visceral and parietal pericardial surfaces against each other

Organisms are made to compete for their needs from the environment. The competition as we pointed earlier could be for the food and territory, to overcome the adverse climatic cond

Radiobiology : This is the study of effects of radiations on living organisms. Radiobiology is a branch of science which concerned with the action of ions. Radiobiology is the radi

Q. What is the economic importance of sponges? a few chemical substances secreted by sponges have anti-inflammatory, anti-tumoral activities and antibiotic and they are used in