DO_infectious_disease_slim parasitic Ichthyosporea infectious disease rhinosporidiosis UMLS_CUI:C0035469 A parasitic Ichthyosporea infectious disease that is a chronic granulomatous infection of the mucous membranes caused by the parasite Rhinosporidium seeberi, which manifests as vascular friable polyps that arise from the nasal mucosa or external structures of the eye. Disease of the skin, mouth, upper airways, ear, genitals, and rectum has also been observed. disease_ontology DOID:2409 SNOMEDCT_US_2025_09_01:18140003 ICD10CM:B48.1 Infection by Rhinosporidium seeberi MESH:D012227 ICD9CM:117.0