THE CONCEPT OF FIBROOSSEOUS LESIONS OF BONE HAS EVOLVED OVER THE LAST SEVERAL DECADES AND NOW INCLUDES TWO MAJOR ENTITIES: fibrous dysplasia and ossifying fibroma. Peripheral cemento-ossifying fibroma is a relatively rare tumour classified between fibroosseous lesions. It predominantly affects adolescents and young adults, with peak prevalence between 10 and 19 yrs. The cemento-ossifying fibrom...

Among the variants of medulloblastoma in the current WHO classification of nervous system tumors, the desmoplastic variant, which has been reported to constitute 5%-25% of pediatric medulloblastomas, is defined by its nodular collections of neurocytic cells bounded by desmoplastic internodular zones. We have studied the frequency, morphological features and biological behavior of medulloblastom...

central cementifying fibroma is a bony tumor, which is believed to be derived from the cells of the periodontal ligament. central cemento‑ossifying fibroma behaves like, a benign bone neoplasm. this bone tumor consists of highly cellular, fibrous tissue that contains varying amounts of calcified tissue resembling bone, cementum, or both. central cemento‑ossifying fibromas of the mandible are co...

Cemento-ossifying fibroma is a lesion containing both fibrous and osseous components. Such lesions include fibrous dysplasia, ossifying fibroma, cemento-ossifying fibroma and cementifying fibroma. Periodontal membrane is the origin of fibro-osseous lesions other than fibrous dysplasia.Here a clinical case of a young woman referred for evaluation of a mass in the right side of face between eye a...

Cemeto-ossifying fibroma (COF) is a benign fibro-osseous lesion of the mandible and maxilla. The World Health Organization (WHO) introduced the term “cementoossifying fibroma” by combining two entities, cementifying fibroma and ossifying fibroma in 1992. However in 2005 the entity was included under ossifying fibroma group. The tumor usually affects the young adults. Rarely, this tumor arises i...

Fibro-osseous lesions of the face and paranasal sinuses are relatively uncommon. These lesions have overlapping clinical, radiologic and pathologic features causing difficulty in diagnosis. Neoplastic fibro-osseous paranasal sinus lesions can be benign or malignant. The benign fibro-osseous lesions described are: ossifying fibroma (and its histologic variants) and fibrous dysplasia. The variant...

Desmoplastic melanoma is a rare variant of spindle cell melanoma that was first described in 1971 by Conley et al. [1] . Between 1988 and 2006, less than 2,000 patients were diagnosed with desmoplastic melanoma in the United States. It accounts for between 1 to 4 percent of all cases of cutaneous melanomas. [2] Early diagnosis of desmoplastic melanoma can often result in favorable outcomes due ...