title: Atypical pterygium. A clinical feature of Terrien's marginal degeneration.
abstract: Three case reports illustrate a manifestation of Terrien's marginal corneal degeneration, the pseudopterygium. When present, the pseudopterygium has a characteristic appearance, which is of diagnostic value. This condition occurs at positions other than the 3- and 9-o'clock positions, and it grows onto the cornea at an oblique axis and has a rather broad, flat, leading edge. The pseudopterygium may appear extremely early in the disease when the marginal furrow may still be a subtle finding.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D003228:Conjunctiva / Q000473:pathology*; D003316:Corneal Diseases / Q000175:diagnosis / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011625:Pterygium / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D012737:Sex Factors