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2022, Number 4

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Rev Cubana Pediatr 2022; 94 (4)

Congenital flat cornea and inborn error of metabolism in a child

Castro CK, Sigler MJG, Sigler VAA, Pozo AAJ
Full text How to cite this article

Language: Spanish
References: 28
Page: 1-14
PDF size: 458.22 Kb.


Key words:

congenital flat cornea, sclerocornea, hyperammonemia, inborn error of metabolism, defects of the urea cycle.

ABSTRACT

Introduction: Congenital flat cornea is a rare anomaly of dominant or recessive autosomal inheritance. Urea cycle defects are inborn errors of metabolism that can lead to progressive encephalopathy.
Objective: To describe the clinical characteristics of a patient with diagnoses of congenital flat cornea and inborn error of metabolism.
Case Presentation: A 7-year-old male patient, member of the fourth generation of a family diagnosed with congenital flat cornea. Ophthalmological examination showed upper limbal sclerization, generalized corneal flattening and narrow anterior chambers in both eyes. Corneal topography showed more prominent spherical patterns and corneal flattening in the middle and extreme periphery. At the age of 5 years, he began to present recurrent ataxia, focal onset epileptic seizures of clonic motor in the right hemibody and vomiting. He was admitted in a coma in the pediatric intensive care unit of "William Soler" University Pediatric Hospital. Progressive encephalopathy was stated due to disorder in the urea cycle after hyperammonemia (congenital error of metabolism) was observed, without metabolic acidosis.
Conclusions: Congenital flat cornea is a disease characterized by generalized corneal flattening with an impact on visual quality. Inborn errors of metabolism due to disorders in the urea cycle are characterized by severe neurological manifestations with potential danger to life. The presentation of these two rare diseases in the same patient is novel; an association that has not been published previously.


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C?MO CITAR (Vancouver)

Rev Cubana Pediatr. 2022;94