[Twin pregnancy and polymalformative syndrome by Enterovirus].

Prenatal diagnosed congenital infection by Enterovirus is rarely described in the literature. A few casereports describe severe abnormalities observed by ultrasound that have led to spontaneous intrauterine demise or early death of the newborn. We report the case of a dichorionic diamniotic twin pregnancy.

A case of osteosarcoma in a patient with pycnodysostosis.

Pycnodysostosis is a rare sclerosing bone dystrophy. The main clinical features are short stature and oral and maxillofacial abnormalities such as a large head, a small and underdeveloped face with prominent nose and eyes, irregular dentition, small hands and feet with dystrophic nails, and trunk deformities such as scoliosis. The differential diagnosis is established with other skeletal dysplasias such as osteopetrosis, cleidocranial dysplasia, and idiopathic acro-osteolysis.