alexa Ameloblastoma | Russian Federation| PDF | PPT| Case Reports | Symptoms | Treatment

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Ameloblastoma

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  • Ameloblastoma

    Ameloblastoma Histopathology will show cells that have the tendency to move the nucleus away from the basement membrane. This process is referred to as "Reverse Polarization". The follicular type will have outer arrangement of columnar or palisaded ameloblast like cells and inner zone of triangular shaped cells resembling stellate reticulum in bell stage. The central cells sometimes degenerate to form central microcysts. The plexiform type has epithelium that proliferates in a "Fish Net Pattern". The case records and surgical biopsy reports of all diagnosed cases of ameloblastoma archived from January 2010 to December 2012 were retrieved from the Outpatient Department of Oral Medicine and Radiology, Vishnu Dental College, Bhimavaram, West Godavari District, Andhra Pradesh.

  • Ameloblastoma

    The plexiform Ameloblastoma shows epithelium proliferating in a 'cord like fashion', hence the name 'plexiform'. There are layers of cells in between the proliferating epithelium with a well-formed desmosomal junctions, simulating spindle cell layers. AmeloblastomaVariants.The six different histopathological variants of ameloblastoma are desmoplastic, granular cell, basal cell, plexiform, follicular, and acanthomatous. The acanthomatous variant is extremely rare.One-third of ameloblastomas are plexiform, one-third are follicular. Other variants such as acanthomatous occur in older patients.In one center, desmoplastic ameloblastomas represented about 9% of all ameloblastomas encountered.

  • Ameloblastoma

    While chemotherapy, radiation therapy, curettage and liquid nitrogen have been effective in some cases of ameloblastoma, surgical resection or enucleation remains the most definitive treatment for this condition.There is evidence that suppression of matrix metalloproteinase-2 may inhibit the local invasiveness of ameloblastoma, however, this was only demonstrated in vitro.

 

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