title: Hemangiopericytoma of the oral cavity after a ten-year follow-up.
abstract: Hemangiopericytoma (HPC) is a mesenchymal tumour that may be benign, malignant, or occur in an intermediate form. We report an unusual case of hemangiopericytoma located in the buccal mucosal region. The histopathologic features showed increased cellularity, necrosis, hemorrhage, low proliferation index, and 4 or less mitotic figures per 10 high-power fields. Since this histological pattern suggests an intermediate form characterized by unpredictable clinical behavior, life-long follow-up is essential. In this patient no recurrences or distant metastases were evident at 10-yr follow-up.
authors: Department of Pathology, Policlinico P Giaccone, University of Palermo, Palermo, Italy.
authors: Emiliano
authors: E
authors: Maresi
authors: Silvia
authors: S
authors: Tortorici
authors: Maria
authors: M
authors: Campione
authors: Maria L
authors: ML
authors: Buzzanca
authors: Francesco
authors: F
authors: Burruano
authors: Filiberto
authors: F
authors: Mastrangelo
authors: Stefano
authors: S
authors: Tetè
mesh_terms: D000328:Adult; D018572:Disease-Free Survival; D005260:Female; D005500:Follow-Up Studies; D006393:Hemangiopericytoma / Q000473:pathology* / Q000601:surgery; D006801:Humans; D009061:Mouth Mucosa / Q000473:pathology; D009062:Mouth Neoplasms / Q000473:pathology* / Q000601:surgery; D016896:Treatment Outcome