has characteristic has characteristic disease arises from structure disease arises from alteration in structure chromosome 14 (Human) mosaic trisomy 14 https://rarediseases.info.nih.gov/diseases/1327/mosaic-trisomy-14 https://www.malacards.org/card/mosaic_trisomy_14 MESH:C535489 Mosaic trisomy type 14 trisomy 14 mosaicism NCIT:C116319 GARD:0001327 MEDGEN:418947 Mosaic trisomy 14 is a rare chromosomal disorder in which there are 3 copies (trisomy) of chromosome 14 in some cells of the body, while other cells have the usual two copies. The extent and severity of features in affected individuals can vary. Signs and symptoms that have been most commonly reported include intrauterine growth restriction ; failure to to thrive ; developmental delay; intellectual disability; distinctive facial characteristics; structural malformations of the heart; and other physical abnormalities. This condition is most often caused by an error in cell division in the egg or sperm cell before conception, or in fetal cells after fertilization. Treatment is directed toward the specific signs and symptoms in each individual. Mosaic trisomy chromosome 14 SCTID:764466009 MONDO:0015725 UMLS:C2930917 Orphanet:1703 chromosome 14 disorder mosaic trisomy