DO_infectious_disease_slim gram-negative_bacterial_infectious_disease sexually_transmitted_infectious_disease has phenotype tertiary syphilis cardiovascular syphilis DOID:9880 A tertiary syphilis that is manifested as aneurysm formation in the ascending aorta, caused by chronic inflammatory destruction of the vasa vasorum, insufficiency of the aortic valve, or narrowing of the coronary arteries. UMLS_CUI:C0029751 ICD9CM:093.8 SNOMEDCT_US_2025_09_01:111823001 disease_ontology Vascular dilatation