An ameloblastic fibroma is a fibroma of the ameloblastic tissue, that is, an odontogenic tumor arising from the enamel organ or dental lamina. It may be either. Ameloblastic fibroma, is a mixed odontogenic tumor, which commonly affects young children under the age of 20 years, with the mandibular premolar-molar. ameloblastic fibroma in a 9-year-old boy has been presented along with a review of the literature. The tumor responded to conservative surgical treatment.
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History An year-old male presented for a routine dental examination with an incidental finding in the left posterior maxilla. Orthopantomogram showing a well-defined, noncorticated solitary unilocular radiolucency in 45, 46, and 47 region Click here to view. Cortical expansion of the affected bone is commonly observed [ 22 ] which was noted in the present case elucidating its true neoplastic nature.
The least differentiated lesion, ameloblastic fibroma, actually occurs, on average, at an older age then the more differentiated ameloblastic fibro-odontoma and odontoma [ 4 ]. Report of a case with a special reference to its aspiration cytologic findings. The recurrence rate varies among sources, but is considered to be low [ 57 ].
A case report with a follow-up of 4 years.
Oral and Maxillofacial Pathology, 2 nd ed. Ameloblastic fibroma AF is an extremely rare true mixed benign tumor that can occur either in the mandible or maxilla.
Ameloblastic fibroma, ameloblastic fibro- odontoma, and odontoma. Diagnosis by means of FNAB.
Ameloblastic fibroma: A rare case appearing as a mixed radiographic image
Fine akeloblastic aspiration did not yield any fluid ruling out a cystic lesion. Microscopically the epithelial component occupies the mesenchymal stroma in various patterns like thin long strands, cords, nests, or islands. Photomicrograph showing ameloblastic islands in a cellular connective tissue stroma. The lesion was excised and curettage of the adjacent maxillary bone was performed under general anesthesia.
Author information Article notes Copyright and License information Disclaimer. Received Oct 6; Accepted Oct 9. Microscopically, the lesion showed proliferation of strands of ameloblastic epithelial cells within a moderately cellular connective tissue stroma that closely simulates the dental papilla.
Ameloblastic fibroma – Wikipedia
Incidence of Maxillary AF is believed to be uncommon by itself; its bilateral presentation is exceedingly rare. Mixed odontogenic tumors and odontomas: Side profile of the patient showing the extensions Click here to view. The most common location for the tumor is the posterior mandible, followed by the posterior maxilla.
The epithelial islands and cords were characterized by peripheral columnar or cuboidal hyperchromatic cells and were frequently only two cell layers thick Fig. The panoramic radiography revealed a well-defined multilocular mixed image, with sclerotic borders, located in the mandible, laterally and between the roots of the left mandibular second premolar and first molar, measuring approximately 1.
A well-defined multilocular mixed image, with sclerotic borders, located between the roots of the left mandibular second premolar and first molar. In the present report, the presence of thin septa producing a stepladder pattern resembled that observed in myxoma, although odontogenic myxoma occurs most commonly in patients during third and fourth decades of life J Oral Maxillofac Pathol ; The lesion presented a firm consistency and no signs of inflammation were observed.
Microscopically, an ameloblastic fibroma is composed of a connective tissue background that appears to recapitulate dental papilla, resembling stellate reticulum [ 137 ]. World Health Organization Classification of Tumours: Radiographically, AF appears as a well-defined unilocular or multilocular radiolucent image with a mean size of 4.
The present case reports signifies the importance of careful differential diagnosis of intrabony oral lesions with an atypical location. Critical analysis of previously reported cases plus 10 new cases. The lesion was excised under local anesthesia.
Author information Article notes Copyright and License information Disclaimer. Numerous mitotic fiborma or any atypical mitotic figure if noticed suggests a malignant entity such as ameloblastic fibrosarcoma AFS in the differential diagnosis [ 1415 ]. Radiographic Features Imaging studies revealed a well-circumscribed, unilocular radiolucency preventing eruption of the left maxillary second molar and displacing it in a superior and posterior direction, into the maxillary sinus Fig.
Mesenchymal proliferation in the interior of the tumor resulting in loss of the epithelial component should also be considered an important event, as it may indicate a modification seen in the malignant transformation of an AF 4.
It is more common in the first and second decades of life, when odontogenesis fibrroma ongoing, than in later decades. Surgical excision or thorough curettage with removal of affected teeth is the treatment of choice [ 12 ]. Case Report A 2-year-old female child patient visited the department of oral and maxillofacial surgery with a complaint of diffuse swelling in the right mid face since one year.
On intraoral examination, the right lower buccal vestibule was obliterated due to the expansion of the buccal cortical plate. Patients often present with painless swelling of the jaw and the lesion may affect the normal eruption of teeth in the area. Odontogenic tumors Neoplasm stubs. Calcifying epithelial odontogenic tumour: