Fibrous dysplasia is a benign disorder in which the normal structure of the bone and marrow is replaced by fibrous tissue1,2. It was first described by Lichtenstein in 19383 and it represents 5 to 7% of all benign bone tumors4,5. This lesion type can involve a single bone or multiple bones, in one-fourth of the cases being localized at the head and neck level2. In patients with skull involvemen...

pregnancy tumor is a benign, hyperplastic lesion of the gingiva, considered to be reactive or traumatic rather than neoplastic in nature. the term pyogenic granuloma is a misnomer as it is not filled with pus or granulomatous tissue histologically. it is multi factorial in nature, which shows an exaggerated response to stimuli such as low grade or chronic irritation, trauma or hormonal variatio...

Oral pyogenic granuloma is a benign multifactorial lesion that appears as highly vascular gingival enlargement. It can be located anywhere in the oral cavity, most often vestibular marginal gingiva. occurs frequently adult women and male children. does not usually compromise bone tissue or teeth; its safest treatment surgical excision, with high recurrence risk. This study aims to report case o...

langerhans cell histiocytosis (lch) is a rare neoplasm defined as the proliferation of bone marrow langerhans cells, which is a kind of dendritic cells. the major pathological features of lch are expression of cd1a and s100 as well as birbeck granules. its presentation can differ from a mild bone lesion to a multi-systemic evolved malignant neoplasm; however, the latter outcome is almost rare. ...

ally involves the metaphysis and epiphysis of long bones. Although the spine is the fourth leading location of GCT, most of these lesions occur in the sacrum, followed by the thoracic, cervical and lumbar vertebrae (1). GCT of bone is a benign, but potentially aggressive lesion that shows local recurrence and metastases. Metastatic lung disease rarely originates from a benign tumor, but this ca...

abstract   squamous cell carcinoma (scc) is the most common malignant tumors of oral cavity. the ratio of men to women is about 2: 1. generally, it   is admitted that 60% of carcinoma of the mandibular gingival are located in the posterior of premolars. gingiva is one of the less common sites of oral squamous cell carcinoma (oscc). due to the variable clinical and behavioral presentations, it c...

desmoplastic fibroma is a rare, locally aggressive, benign lesion. a case of desmoplastic fibroma of left side of mandible is reported. the lesion presented as painless mass in left posterior portion of mandible of a 7-year-old girl. histologically the lesion was composed of interlacing fascicles of benign appearing fibroblast in a varying ground substance of collagenous tissue. in this report,...

INTRODUCTION Aneurysmal Bone Cyst (ABC) is a benign expansile cystic blood filled reactive lesion of the bone, most common in the first 2 decades of life. Though it can involve any bone in the body but tibia, humerus, femur and posterior elements of spine are most commonly affected. They most commonly involve metaphysis or metaphysio-diaphyseal part of the bone. Primary involvement of epiphysis...

Fibrous dysplasia (FD) is a benign skeletal disorder that can affect one bone (monostotic form) or multiple bones (polyostotic form). It is a non-inherited bone disease, in which abnormal differentiation of osteoblasts leads to replacement of normal marrow and cancellous bone by immature bone with fibrous stroma. It is often asymptomatic and incidentally detected on radiographs. We report this ...

Aneurysmal bone cysts are expansile osteolytic bone lesions that can manifest clinically as lameness, pain and swelling. In humans, aneurysmal bone cysts are considered benign tumours that have been classified as primary or secondary to a previous coexisting lesion. Local recurrence after treatment or malignant transformation has been reported in both humans and in a dog. Different treatment op...