
Bulging Fontanelle as Presenting Sign in Cystic FibrosisVitamin A Metabolism and Effect on Cerebrospinal Fluid Pressure
Rosalind S. Abernathy, MD
Am J Dis Child. 1976;130(12):1360-1362.
Abstract
A 5 -month-old infant had the single problem of a bulging fontanelle. A diagnosis of cystic fibrosis with secondary hypovitaminosis A was made by the findings of high sweat chloride values and a low serum carotene level. A greatly accelerated rate of weight gain following the addition of pancreatic enzyme supplements confirmed the presence of malabsorption. The infant developed characteristic cystic fibrosis pulmonary disease at 20 months of age.
Animal studies have shown vitamin A deficiency to be associated with increased cerebrospinal fluid (CSF) pressure, diminished absorption of CSF, and pathological findings of thickening and infiltration with mucopolysaccharides of the dura mater around the arachnoid villi.
(Am J Dis Child 130:1360-1362, 1976)
Author Affiliations
From the Cystic Fibrosis Center, University of Arkansas Medical Center, Little Rock.
Footnotes
Reprint requests to Cystic Fibrosis Center, University of Arkansas Medical Center, 4301 W Markham St, Little Rock, AR 72201 (Dr Abernathy).
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