Ameloblastic carcinoma of the mandible
Keywords:
ameloblastoma, carcinoma, mouth neoplasm.Abstract
The term ameloblastic carcinoma is used to describe the ameloblastomas withhistological characteristics of malignancy. This type of lesion may to occur in any
age, but it may be more frequent observed in the fourth decade of life. The is not
apparently a predominance sexual. The commonest involved area is the posterior
portion of mandible involving in less extent the maxillary. This is a tumor with few
cases mentioned in the literature, thus, the aim of present paper was to present a
case of ameloblastic carcinoma in a female patient aged 38 came to consultation
due to painful symptoms and facial asymmetry. In intrabuccal clinical examination
it was noted a volume increase in the right posterior region of mandible. The
computed tomography showed a slimming of the cortex with presence of a
homogenous hypo-dense area. An incisional biopsy was made and its initial
histological diagnosis was an ameloblastoma without histological characteristics of
malignancy. After histopathological examination the surgical treatment of lesion
was prescribed with a partial resection of mandible. The surgical structure (sample)
was sent to laboratory to obtain a new diagnosis of ameloblastic carcinoma. It is
probable that the difference of final histological diagnosis with the initial one could
be related to the fact that the ameloblastic carcinoma has focal areas similar to
ameloblastoma. After 6 months of surgical procedure the patient had tumoral lung
metastasis and is under medical supervision.
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