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 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. Dense embryonic connective tissue encircles the attachment of the umbilical cord. It forms an umbilical ring of mesodermal condensation surrounding the coelomic portal, and is present in the 16 mm. embryo, but more emphatically so in the 23 mm. embryo. The compact tissue first appears in the stalk mesoderm, situated superficial to the allantoic