Abstract
Statements that certain syndromes are characterized by abnormal dimensions of facial features or body proportions are often subjective and lack statistical backing. We have compared the cephalic index, inter outer and inner canthal distances, interpupillary distance, ear height and length, philtrum length, angle at elbow, hand size, hand/finger ratio, internipple/chest circumference ratio and upper/lower segment ratio in normal children and patients with DeLange, Noonan, and XO Turner syndromes. Many comparisons demonstrate statistically significant differences. For instance, in DeLange syndrome, the digits are short, relative to the palm. In Noonan syndrome the ears are low set but not appreciably so in Turner syndrome. The ratio of sitting height to height is increased in Turner syndrome as is the internipple to chest circumference.
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Preus, M., Fraser, F. & Feingold, M. QUANTITATIVE EVALUATION OF ABNORMAL FEATURES IN SELECTED SYNDROMES. Pediatr Res 8, 441 (1974). https://doi.org/10.1203/00006450-197404000-00607
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DOI: https://doi.org/10.1203/00006450-197404000-00607