DO_rare_slim has material basis in ring chromosome syndrome UMLS_CUI:C0035639 DOID:0070620 disease_ontology MESH:D012303 ORDO:363203 A chromosomal disease that has_material_basis_in chromosome fusion into a ring or ring-like structure. Ring chromosome syndrome phenotypes are inherently variable. ICD10CM:Q93.2 NCI:C3360 SNOMEDCT_US_2025_09_01:23345003 MESH:D012303 UMLS_CUI:C0035639 ORDO:363203 RC ring chromosome ring syndrome chromosomal disease disease ring_chromosome