Development of Midgut (Special Embryology)
17
Anatomy of Anatomy of Intestine Intestine Dr. Sherif Fahmy
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Transcript of Development of Midgut (Special Embryology)
Anatomy of Anatomy of IntestineIntestine
Dr. Sherif Fahmy
Dr. Sherif Fahmy
Dr. Sherif Fahmy
Development Development of Mid-gutof Mid-gut(Page 85)(Page 85)
Dr. Sherif Fahmy
Dr. Sherif Fahmy
Dr. Sherif Fahmy
Mesoderm
Hindgut
Midgut
Pericardial bulge Vitelline ductDefinitive yolk sac
L.S. in folded embryo
Dr. Sherif Fahmy
Dr. Sherif Fahmy
Dr. Sherif Fahmy
Dr. Sherif Fahmy
Dr. Sherif Fahmy
Dr. Sherif Fahmy
Dr. Sherif Fahmy
Anomalies of MidgutAnomalies of Midgut1- 1- Anomalies of mesenteries:Anomalies of mesenteries:
- Mobile cecum.- Mobile cecum.- Reto-colic pocket.- Reto-colic pocket.
2- 2- Body wall defect:Body wall defect:- Omphalocele.- Omphalocele.- Gastroschisis.- Gastroschisis.- Infantile umbilical hernia.- Infantile umbilical hernia.
3- 3- Stenosis or atresia of intestinal Stenosis or atresia of intestinal lumenlumen
4- 4- Subhepatic cecum and appendixSubhepatic cecum and appendix Dr. Sherif Fahmy
5- Abnormal rotation of midgut loopA- Arrest of rotation after 90 degree- Ascending colon and cecum are on left side of abdomen.B- Rotation for 90 degree to opposite direction- Transverse colon is deep to duodenum.6- Remenants of vitelline duct-Meckel’s diverticulum.-Vitelline cyst-Vitelline fistula.
Dr. Sherif Fahmy
Dr. Sherif Fahmy
Dr. Sherif Fahmy
