pterygium Conjunctival degeneration conjunctival pterygium Web eye pterygium Unspecified pterygium (disorder) ICD9:372.40 Pterygium (disorder) Pterygium, NOS ICD9:372.4 DOID:10526 SNOMEDCT:77489003 Pterygium, unspecified GeneRIF:15273656 Pterygiums URI: http://www.ebi.ac.uk/cellline#pterygium MSH:D011625 An abnormal triangular fold of membrane in the interpalpebral fissure, extending from the conjunctiva to the cornea, being immovably united to the cornea at its apex, firmly attached to the sclera throughout its middle portion, and merged with the conjunctiva at its base. (Dorland, 27th ed) SNOMEDCT:193884009 GeneRIF:14533030 SNOMEDCT:193879003 Pterygium NOS (disorder) James Malone Conjunctival Pterygium GeneRIF:12827055 GeneRIF:15523624