You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Portosystemic shunt is not seen in - and explain in detail?
Portocaval anastomosis (portosystemic shunt) is seen at lower end of the esophagus (gastroesophageal), umblicus, the bare area of the liver, lower end of the rectum (anorectal), posterior abdominal wall, falciform ligament, ligamentum venosum, and posterior vaginal wall.