title: Solid glomus tumor of the pterygoid fossa: a lesion mimicking an epithelial neoplasm of low-grade malignancy.
abstract: An example of a solid glomus tumor occurring in the pterygoid fossa is described. Despite its epithelial appearance on light microscopy, the tumor was of connective tissue origin. The diagnosis of glomus tumor was based on characteristic cytologic, ultrastructural, and immunohistochemical features, but the unusual site of the tumor made the diagnosis difficult.
mesh_terms: D000293:Adolescent; D002277:Carcinoma / Q000473:pathology* / Q000648:ultrastructure; D003937:Diagnosis, Differential; D005260:Female; D005918:Glomus Tumor / Q000473:pathology* / Q000648:ultrastructure; D006801:Humans; D011626:Pterygoid Muscles; D012888:Skull Neoplasms / Q000473:pathology* / Q000648:ultrastructure