introduction: peripheral odontogenic tumors are rare and there is no valid information of the frequency of them in the literature. this study aims to obtain the frequency of these tumors. materials and methods: the files of oral and maxillofacial pathology (microscopic reports and slides), faculty of dentistry, shahid beheshti university of medical sciences served as the source of the material ...

Medication-related osteonecrosis of the jaw (MRONJ) has been associated with use different drugs administered in treatment malignant neoplasms or metastases and antiresorptive therapies. Since 2010, denosumab, a monoclonal antibody whose mechanism action is to prevent activation RANK receptor on surface osteoclasts, jaw. Primary intraosseous squamous cell carcinoma (PIOSCC) rare neoplasm charac...

Osteosarcoma is a classical malignant bone-forming neoplasm which usually presents with an aggressive clinical course. The current case is presented with the radiographic feature of widening of the periodontal ligament space of the involved teeth, which is considered to be the earliest radiographic manifestation of osteosarcoma involving the jaw bone. The main aim of this case report was to foc...

Osteoblastoma is a rare solitary osteoblastic bone neoplasm. It is characterized by proliferation of osteoblasts forming trabeculae within a vascular fibrous stroma. There is a variety of jaw bone lesions with very close clinical, radiological and microscopic interrelations, which make diagnosis more challenging. Familiarity with these rare bony lesions is vital for oral pathologists. This repo...

Myofibroma is a rare benign spindle cell neoplasm in children that usually affects both soft tissue and bone in the head and neck region. Approximately one third of these cases are seen within jaw bones as solitary lesions. Solitary intra-osseous myofibroma of the jaw bone shares its clinical, radiographic and histological features with other spindle cell tumors. The rarity of this lesion can m...

Bisphosphonates are a class of agents used to treat osteoclast-mediated bone diseases and many neoplasm types. Osteonecrosis of the jaw is a common side effect of bisphosphonate therapy, presenting as exposed and necrotic maxillary and/or mandibular bone. In this report, we present a case of bisphosphonate-related osteonecrosis of the jaw in a patient who received oral alendronate therapy due t...

Keratocystic odontogenic tumor (KCOT) is a benign intraosseous neoplasm of the jaw. Involvement of the maxillary sinus is an unusual presentation. We present the case of a 23-year-old man with extensive KCOT and impacted third molar in the right maxillary sinus. The clinical, radiological, and histological features of this tumor and its surgical management are discussed.

Odontogenic keratocyst has been renamed as by world health organization in 2005. It is a benign intraooseous neoplasm of the jaw. They develop from the dental lamina remenants in the mandible and maxilla.Odontogenic keratocyst is of particular interest because of its recurrence rate and aggressive behavior. We present a case in a middle aged lady patient.

INTRODUCTION Clear cell neoplasms of the jaw are very infrequent and a review of the literature reports only isolated cases of metastatic renal clear cell carcinoma of the jaw. CASE PRESENTATION A 68-year-old man presented with an osteolytic lesion of the left hemimandible. The first diagnostic hypothesis was a third molar follicular cyst. Surgical treatment consisted of enucleating the lesio...

  Objective: Oral non- Hodgkin’s lymphoma (NHL) is a relatively rare neoplasm that may develop in the soft tissues or jaw bones, with or without node or marrow involvement. Oral lymphomas are often difficult to diagnose as there are no characteristic clinical features and usually appear as non-tender swellings.   Case: We describe clinical, radiographic, histopathological and immunohistochemica...