Extensor-tendon hypoplasia and multiple pterygia: Escobar syndrome in a 7-year-old boy.

Escobar syndrome is a rare condition with autosomal-recessive inheritance, characterised by multiple pterygia, kyphoscoliosis, multiple joint contractures and craniofacial dysmorphisms. A number of other abnormalities are also attributed to the syndrome. Here, we present a case of isolated extrinsic extensor-tendon hypoplasia of the right index finger in a 7-year-old patient with Escobar syndrome. To our knowledge, this has not been previously described in connection with this syndrome.