[Umbilical angiofibroma (apropos of a case)].

A woman aged 15 without any notable pathological history, was submitted to an operation because of a gradual growth of her umbilical region for a month. A tumor as large as an hazel-nut, was an angiofibroma of the round ligament of the liver. The round ligament may give cysts and tumors as the allantois does. If the tumors are generally malignant when situated in allantois, they would not always be mild when in the round ligament, as attested by a late observation in litterature.