Corneal opacity and congenital glaucoma associated with massive heparan sulfaturia: report of one case.
A four month-old male infant was noted to have had severe corneal opacity since birth. Buphthalmos, increased intraocular pressure and corneal opacity with neovascularization were noted during physical examination. There was neither dysmorphic face nor hirsutism and the liver and spleen were impalpable. In addition, hypotonia, poor head control, and absence of Moro and grasping reflexes were also noted. There was no evidence of congenital infection by TORCH study. Tests of both urine and plasma amino acids were within normal limits. However, excessive urinary excretion of heparan sulfate was detected by thin-layer chromatography. Corneal transplantation was performed at 6 months old. Histopathological examination of the corneal button showed homogeneous thickening of Bowmen's membrane and intracytoplasmic pinkish substances in corneal stroma. The Alcian blue stain was positive, which was consistent with mucopolysaccharidosis of cornea. The manifestation of this case may be a clinical variant of Sanfilippo's syndrome (Mucopolysaccharidosis type III).
Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan.
S C
SC
Lin
F R
FR
Hu
J W
JW
Hou
Y T
YT
Yao
T R
TR
Wang
P T
PT
Hung
D003318:Corneal Opacity / Q000209:etiology*; D005901:Glaucoma / Q000151:congenital*; D006497:Heparan Sulfate / Q000652:urine*; D006801:Humans; D007223:Infant; D008297:Male; D009084:Mucopolysaccharidosis III / Q000150:complications
D006497:Heparan Sulfate