title: Stromal bone formation in pleomorphic adenoma of minor salivary gland origin.
abstract: We report an unusual case of pleomorphic adenoma with multifocal stromal bone formation, occurring in the upper lip of a 44-year-old Japanese woman. Islands of fibrous bone were in direct contact with stromal fibrocytes and parenchymal epithelial cells. A review of the literature revealed that stromal bone formation in pleomorphic adenoma of minor salivary gland origin is exceedingly rare.
authors.affiliation: Department of Oral Pathology, School of Dentistry, Iwate Medical University, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Takeda
authors.forename: H
authors.initials: H
authors.lastname: Yamamoto
mesh_terms: D008949:Adenoma, Pleomorphic / Q000473:pathology*; D000328:Adult; D004848:Epithelium / Q000473:pathology; D005260:Female; D006801:Humans; D008048:Lip Neoplasms / Q000473:pathology*; D009999:Ossification, Heterotopic / Q000473:pathology*; D012468:Salivary Gland Neoplasms / Q000473:pathology*; D012470:Salivary Glands, Minor / Q000473:pathology*