disease has feature disease arises from structure disease arises from alteration in structure chromosome 18 (Human) Distichiasis syndromic disease trisomy 18 https://github.com/monarch-initiative/mondo/issues/6878 MedDRA:10053884 icd11.foundation:1505179968 SCTID:51500006 trisomy 18 Edwards syndrome chromosome 18 trisomy GARD:0006321 UMLS:C4317091 Orphanet:3380 ICD9:758.2 trisomy type 18 MONDO:0018071 NORD:1797 trisomy E (formerly) complete trisomy 18 syndrome E3 trisomy trisomy 16-18 (formerly) NANDO:2200963 MEDGEN:1384417 chromosome 18 duplication MESH:C580500 NCIT:C36626 18 trisomy Trisomy 18 is a chromosomal abnormality associated with the presence of an extra chromosome 18 and characterized by growth delay, dolichocephaly, a characteristic facies, limb anomalies and visceral malformations. DOID:1085 obsolete eyebrow hypertrophy obsolete eyebrow/eyelashes distichiasis obsolete chromosomal anomaly with cataract trisomy chromosome 18 disorder