Radioulnar synostosis-microcephaly-scoliosis syndrome, also known as Guiffré-Tsukahara syndrome, is an extremely rare syndrome characterized by the association of radioulnar synostosis with microcephaly, scoliosis, short stature and intellectual deficit.

A fold of skin starting above the medial aspect of the upper eyelid and arching downward to cover, pass in front of and lateral to the medial canthus.