Type : Phenotype or locus, molecular basis unknown;
Alternative titles and symbols : Brachyolmia, maroteaux type;
Description : The term 'brachyolmia' was coined to designate a bone dysplasia characterized clinically
by short trunk dwarfism and radiographically by generalized platyspondyly without
significant long bone abnormalities. The Maroteaux type of brachyolmia is an autosomal
recessive form in which there is rounding of the anterior and posterior vertebral
borders, with less elongation on lateral view and less lateral extension on anteroposterior
view than is seen in the Hobaek type of brachyolmia (271530). Maroteaux brachyolmia
may also be associated with precocious calcification of the falx cerebri, and minor
facial anomalies (summary by Shohat et al., 1989). For a discussion of genetic heterogeneity
of brachyolmia, see 271530.;