Ameloblastoma is a benign odontogenic tumor. These are usually asymptomatic until a large size is attained. Ameloblastoma has tendency to spread locally and has a high recurrence rate. Majority of ameloblastomas (80%) arise from the mandible. Ameloblastoma arising from anterior mandibular region (symphysis-menti) is rare. Very few cases of midline anterior ameloblastomas are reported in the lit...

Ameloblastoma is traditionally considered a benign epithelial neoplasm with virtually no tendency to metastasize. It is the second most common odontogenic neoplasm. Its incidence, combined with its clinical behavior, makes ameloblastoma the have been classically described as a multilocular cystlike lesion of jaw. The unicystic variant is far less frequent and has been reported only 6% of amelob...

Ameloblastoma is a common and easily diagnosed odontogenic tumor. When present with histologic atypia is crucial because transformation to ameloblastic carcinoma is potentially life-threatening. Ameloblastic carcinoma, the malignant counterpart of the ameloblastoma, a rare entity, is characterized histologically by malignant epithelium in the primary, recurrent, or metastatic deposit. It has a ...

Despite documentation of various types of neoplastic pathologies encountered in the vertebrate fossil record, no ameloblastic tumours have been recognised so far. Ameloblastoma is a benign neoplasic tumour with a strong preponderance for the mandible. Here, we report for the first time the presence of an ameloblastoma neoplasm in the lower jaw of a specimen referred to the derived non-hadrosaur...

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 ...

Ameloblastoma is a benign odontogenic tumour of epithelial origin without induction in the connective tissue. In treating this type of tumour, it is important to assess the clinical type (solid, multicystic, unicystic, peripheral), localisation, and size of the tumour as well as age of the patient. Articles have recently been published with the purpose of providing updated knowledge and therape...

Ameloblastoma is an epithelial benign tumor of the odontogenic apparatus and its growth mechanisms are not well understood. Fibroblast growth factor (FGF) 3, FGF7 and FGF10, which are expressed by the neural crest-derived ectomesenchymal cells, induce the proliferation of odontogenic epithelial cells during tooth development. Therefore, we examined the expression and function of these FGFs in a...

Ameloblastoma is an agressive locally recurring neoplasm of odentogenic epithelium. Here we describe a case of mandibular ameloblastoma with 12 yrs. history of local recurrences followed with history of excision twice (10 yrs. and 7 years back).

This paper describes the CT and MR appearance of an ameloblastoma that involved the maxilla, infratemporal fossa, and adjacent structures. Although not pathognomonic, the multicystic appearance of an ameloblastoma may suggest the correct diagnosis.