has characteristic has characteristic disease arises from structure disease arises from alteration in structure Schwann cell schwannoma https://rarediseases.info.nih.gov/diseases/4767/schwannoma https://www.malacards.org/card/neurilemmoma A benign, usually encapsulated slow growing tumor composed of Schwann cells. It affects peripheral and cranial nerves. It recurs infrequently and only rare cases associated with malignant transformation have been reported. benign schwannoma NCIT:C3269 NANDO:2200103 neurolemmoma benign neurilemmoma neurilemmoma schwannoma MedDRA:10029234 ICDO:9560/0 Orphanet:252164 MedDRA:10029235 SCTID:404022001 UMLS:C0027809 DOID:3192 DOID:955 ICD9:215.9 EFO:0000693 ONCOTREE:SCHW SCHW GARD:0004767 MONDO:0002546 schwannoma, benign peripheral fibroblastoma icd11.foundation:378766741 MEDGEN:45053 schwannoma (WHO grade I) neurinoma nerve sheath neoplasm neoplasm benign peripheral nerve sheath tumor low grade glioma tumor grade 1, general grading system