Most of the head and neck tumors are odontogenic in origin. Non odontogenic tumors of epithelial or mesenchymal origin also form a significant component in this region. The tumors arising from mesenchymal component may originate from various structures like fibrous tissue, adipose tissue, bone and cartilage. Here we report a case of benign tumor originating from bone that is restricted to the c...

Background: Osteoma is benign bone tumors are often found in skeletal bones. These can involve any bone, but usually the long The affected generally prominent and clinically visible. This tumor treated with surgery to remove mass. cause of osteoma unclear, accepted theories related embryology, trauma, or infection. Objective: case reports a peripheral type lingual right lower jaw discuss accord...

aneurysmal bone cyst (abc) is a benign expansile bone tumor, most commonly involving the medulla of long bones. abc rarely arises within the cortex or in the subperiosteal region, radiographically mimicking other conditions, in particular surface osteosarcomathat is low-grade in nature and may go secondary abc changes, and telangiectatic osteosarcoma. both of these are sometimes mistaken micros...

Carcinoembryonic antigen related cell adhesion molecule 1 (CEACAM1) is a trans-membrane multifunctional cell adhesion molecule associated with tumor cell proliferation, apoptosis, angiogenesis, invasion, and migration during tumor development. In the present study, we evaluated serum CEACAM1 level in osteosarcoma patients to explore its diagnostic and prognostic value for this particular malign...

Ossifying fibroma is a slow growing benign neoplasm usually Involving bones of the skull and face, mainly mandible maxilla. The tumor composed bone that develops within fibrous connective tissue, sometimes with cementum-like calcifications. Clinical presentation asymptomatic, rarely presented facial asymmetry, swelling, pain, bowing long bones. Radiological investigations are computed tomograph...

Aneurysmal bone cyst is a rare benign tumor of the bone that can be difficult to distinguish from malignant tumors, especially when it presents in an unusual location. Herein, we report a six-year-old girl with a primary aneurysmal bone cyst in an uncommon location. It originated from the 4th rib and she presented with a huge chest wall mass. Despite the large size of the cyst, the only symptom...

BACKGROUND Ossifying fibroma is a rare benign bone tumor that occurs mostly in the jaw, but also affects paranasal sinuses and fronto-ethmoidal complex. Occipital bone is an extremely rare location for these tumors; only two cases have been reported. METHODS We present the first case reported as psammomatoid subtype of ossifying fibroma, according to the 2005 WHO classification. An 18 years o...

Aims At the histological level, the differential diagnosis of osteoblastic bone tumors is characterized by several problems that cannot be solved by conventional histological methods, including immunohistology. Differentiating aneurysmal bone cyst from telangiectatic osteosarcoma or giant cell tumor from giant cell-containing highly malignant osteosarcoma are only two examples reflecting the co...

twenty five cases of minor saliva ry glands tumors which was observedat the department of pathology of university of tehran from 1967 to 1972 are presented and discussed . benign mixed tumor is the most common and the only benign lesion in this series of 75 patient with intraoral salivary gland tumor. there were eleven malignant type and hence about 44% of all the tumor arc malignant and it cor...