title: Hybrid lesion: central giant cell granuloma and benign fibro-osseous lesion.
abstract: Hybrid lesions comprise elements of different pathologies in one lesion. Hybrid lesions comprising central giant cell granulomas (CGCG) with fibro-osseous components are rare, with only six maxillomandibular cases reported in the literature. We report a case of a hybrid lesion in a 38-year-old woman who presented with a swelling in the mandibular parasymphysis, on the left side. Panoramic and occlusal radiographs and CT showed a mixed lesion with expansion of the buccal cortical plate that pointed to the diagnosis of ossifying fibroma (OF). Complete excision of the lesion was performed, and the anatomopathological examination showed features of both CGCG and a fibro-osseous lesion. Clinical, imaging and histopathological features indicate a hybrid lesion of CGCG and OF. The patient remains asymptomatic after 30 months of follow-up.
authors.affiliation: Department of Oral and Maxillofacial Radiology, Federal University of Bahia, School of Dentristry, Salvador, BA, Brasil. iedacr@ufba.br
authors.forename: I
authors.initials: I
authors.lastname: Crusoé-Rebello
authors.forename: M G G
authors.initials: MG
authors.lastname: Torres
authors.forename: V
authors.initials: V
authors.lastname: Burgos
authors.forename: C
authors.initials: C
authors.lastname: Oliveira
authors.forename: J N dos
authors.initials: JN
authors.lastname: Santos
authors.forename: R A
authors.initials: RA
authors.lastname: Azevedo
authors.forename: P S F
authors.initials: PS
authors.lastname: Campos
mesh_terms: D000328:Adult; D005260:Female; D018214:Fibroma, Ossifying / Q000150:complications / Q000000981:diagnostic imaging*; D006101:Granuloma, Giant Cell / Q000150:complications / Q000000981:diagnostic imaging*; D006801:Humans; D008336:Mandibular Diseases / Q000000981:diagnostic imaging*; D008339:Mandibular Neoplasms / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed