RESUMEN
Unicystic ameloblastoma is one type of ameloblastoma with different clinical, radiographic, pathologic and treatment response. The aim of this article is presenting a unicystic ameloblastoma with ameloblastic fibroma in its wall. A 16 year old boy with a painless expansion in the left side of mandible came into a maxillofacial surgery office. Radiographic views showed a unilocular lesion with involvement of mandibular border and root resorption. Aspiration was positive. Differential diagnosis consist of follicular cyst,odontogenic keratocyst and unicystic ameloblastoma. The lesion was removed with an exisional biopsy and curettage. This article reports a collision of unicystic ameloblastoma and ameloblastic fibroma. Treatment was based on exisional biopsy and curettage
RESUMEN
Benign oral fibrous histiocytoma is a rare lesion in the head and neck region. This tumor usually presents as a single nodular, painless mass which grows slowly and varies in size from 2-3 cm to over 10cm. Most patients are under 50 years of age and a history of trauma; chronic infection and sun exposure are reported. Case Report: In this paper a case of benign fibrous histiocytoma in the tongue of a 44-year-old man is reported. In microscopic view spindle cell Fascicules, along with infiltration of multinucleated giant cells was presented and for definitive diagnosis immunohistochemistry staining for SMA, Desmin, MSA, CD68 and CD34 was conducted. Microscopic feature of oral fibrous histiocytoma may be similar to some soft tissue tumors. Therefore, IHC is necessary for definite diagnosis
RESUMEN
Immediate diagnosis and treatment is very important in fibrooseous lesion and bone tumor because of complication of these lesions like deformity, paresthesia, dysphagia and death. There was no research project of this matter in Iran. So, it was decided to evaluate the prevalence of fibro-osseous and tumoral lesions of head and neck in Shaheed Beheshti Dental School and Taleghani Hospital. This descriptive study was done on the existing data of the 4953 patients referred to the Pathology Department of Shaheed Beheshti Dental School and Taleghani Hospital during 1981-2002. 144 cases of fibro-osseous lesions and bone tumors were collected in this research. Among fibro osseous lesions, fibrous dysplasia was the most prevalent lesion, while among benign bone lesions, osteoma and osteoblastoma and among malignant bony lesions, osteosarcoma had the highest prevalence. Fibrous dysplasia was the most prevalent lesion in females, the second decade of life and in upper jaw. Osteoblastomas were observed in females, in the first and fourth decades of life and in lower jaw. Osteoma was seen mostly in females, in the third decade of life and in lower jaw, while osteosarcoma was prevalent in males, in the third decade of life and in lower jaw