T-shaped uterus a lateral incision of the uterine walls, and can return the organ to a normal morphology, while improving the patient's former reproductive performance. It is considered a low-risk procedure, and can also improve term delivery rate by up to 10-fold, as long as the endometrium is considered to be in good condition. However, risks after the procedure include placenta accreta, Asherman's syndrome and severe haemorrhage. T-shaped uterus A t-shaped uterus is a type of uterine malformation wherein the uterus is shaped resembling the letter T. This is typically observed in DES-exposed women. It is recognised in the ESHRE/ESGE classification, and
Umbilical ring vessels. Cranially it lies ventral to the umbilical vein and on each side extends into the tissue of the lateral pillars of the cord bounding the coelom. When the myotomic downgrowths reach the ventral aspect, their anterior portions (i.e. the sheaths of the recti muscles) become continuous with the tissue of the umbilical ring. Umbilical ring The umbilical ring is a dense fibrous ring surrounding the umbilicus at birth. At about the sixth week of embryological development, the midgut herniates through the umbilical ring; six weeks later it returns to the abdominal cavity and rotates around the superior mesenteric artery.