Spondylothoracic dysostosis, or Jarcho-Levin syndrome, together with s
pondylocostal dysostosis, constitute a heterogeneous group of rare dis
orders characterized by short-neck, short-trunk dwarfism and multiple
vertebral anomalies at all levels of the vertebral column. The latter
include hemivertebrae, fused, hypoplastic, and ''butterfly'' vertebrae
. In most cases of Jarcho-Levin syndrome, the small size of the thorax
causes respiratory death in infancy. This report of a Puerto Rican ch
ild with spondylothoracic dysostosis and unusually long survival to II
years exemplifies the nosologic and prognostic difficulties associate
d with this syndrome. (C) 1994 Wiley-Liss, Inc.