نتایج جستجو برای: desmoplastic ameloblastoma
تعداد نتایج: 3476 فیلتر نتایج به سال:
Ameloblastoma is a slow-growing benign neoplasm that has a strong tendency to local invasion and that can grow to be quite large without metastasizing. Rare examples of distant metastasis of an ameloblastoma in lungs or regional lymph nodes do exist. It has an aggressive and recurrent course and is rarely metastatic. Radiographically it shares common features with other lesions such as the gian...
Ameloblastoma is the second most common benign epithelial odontogenic tumor and though it is of a benign nature, it is locally invasive, has a high recurrence rate and could potentially become malignant. Many theories have been proposed to explain the pathogenesis of ameloblastoma. Proper understanding of the pathogenic mechanism involved in ameloblastoma and its proliferation aids in constitut...
Ameloblastoma is a benign odontogenic tumour which commonly recurs after initial surgery; most recurrences occur at the site of the primary tumour. A rare case of recurrence of a maxillary ameloblastoma in the frontal sinuses is presented. To our knowledge there are no previous reports in the literature of a benign maxillary ameloblastoma extending into the frontal sinuses.
Detection of human papillomavirus DNA in an ameloblastoma using the in situ hybridization technique.
HPV type 18 DNA was identified in an intrabony ameloblastoma using radiolabelled in situ hybridization. The viral DNA was found in a verrucous lesion in a cystic area of the tumor. The absence of HPV DNA in other epithelial areas of the ameloblastoma is suggestive of a secondary infection. HPV is not considered to be an etiological factor in the pathogenesis of this ameloblastoma.
BACKGROUND The ameloblastoma is the most common odontogenic epithelial tumor, which belong to benign neoplasms that present a painless course, and usually occur in the oromaxillo-facial region. Although the histopathological manifestation of ameloblastoma is benign, it has unique biological behavior, for example local invasion and recurrence repeatedly. A few case of ameloblastoma was locally a...
Ameloblastomas are an inscrutable group of oral tumors. Basal cell ameloblastoma is a rare variant of ameloblastoma with very few cases reported until date. The tumor is composed of more primitive cells and has less conspicuous peripheral palisading. It shows remarkable similarity to basal cell carcinoma, basal cell adenoma and intra-osseous adenoid cystic carcinoma. This report describes the c...
Ameloblastoma is a true neoplasm of odontogenic origin. Ameloblastoma is responsible for 1% of all the oral and maxillomandibular cysts and tumors. It is odontogenic in origin and benign in nature but it has a high percentage of local recurrence rate and possible malignant development when treated inadequately. We report a case of plexiform ameloblastoma presenting in a 11-year-old female. The ...
INTRODUCTION Ameloblastoma is a slow growing, painless odontogenic swelling which can attain sizes that result in severe deformities of the craniofacial complex. It is the most commonly encountered odontogenic tumor in Nigeria. Surgical intervention is currently the method of treatment; however identification of altered molecular pathways may inform chemotherapeutic potential. The Protein Patch...
Ameloblastoma is a neoplasm of odontogenic epithelium, especially of enamel organ-type tissue that has not undergone differentiation to the point of hard tissue formation. Granular cell ameloblastoma is a rare condition, accounting for 3.5% of all ameloblastoma cases that shows marked transformation in the cytoplasm of tumor cells, which are usually stellate reticulum like cells. It is also con...
Peripheral ameloblastoma (PA) is a relatively uncommon odontogenic tumor that is histologically identical to the classic inttaosseous ameloblastoma but it occurs primarily in the soft tissues overlying the toothbearing regions of the jaws and does not exhibit the invasive and aggressive behavior of its intraosseous counterpart.l The origin of PA is thought to be from 1 of 2 sources: extraosseou...
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