Case Of Acanthomatous Ameloblastoma Research Articles

Acanthomatous Ameloblastoma: A Rare Presentation

Ameloblastoma is a slow growing, locally aggressive neoplasm of enamel organ type tissue with a high propensity for recurrence. They occur either in maxilla or mandible at nearly any age but most frequently are discovered as a painless expansion in the mandible of patients in their 20s – 40s with equal frequencies in male and female. Histopathologically the follicular and plexiform patterns are the most common. When extensive metaplasia associated with keratin formation occurs in central portions of the epithelial islands of follicular ameloblastoma, the term Acanthomatous is applied. Here we present a case of Acanthomatous ameloblastoma in a 40 years old female patient.

Canine oral tumours: A report of five cases

The present study describes five cases of canine oral tumours presented in the veterinary polyclinic IVRI. Grossly, the tumour masses were observed as gingival enlargement or papillary growths with or without ulcerations.The biopsy samples were collected in 10% NBF for histopathological diagnosis. Histopathologically, one case of acanthomatous ameloblastoma and two cases each of odontogenic fibroma and malignant melanoma were diagnosed.

A histologic variant of ameloblastoma: the acanthomatous type

Introduction : Ameloblastoma is the most common aggressive benign odontogenic tumor of the jaws. This kind of tumor arises from dental embryonic remnants. Clinical case : We report a case of acanthomatous ameloblastoma of the mandible occurring in a 79-year-old male patient. Through this case, we describe clinical and radiological findings in ameloblastoma, discuss different variants of this tumor, and emphasize the histological diagnosis. Discussion : Among the various types of aggressive benign odontogenic tumors, acanthomatous ameloblastoma represents a subtype of the solid multicystic ameloblastoma with specific microscopic features. Its course is controversial. Conclusion : Although the diagnosis of acanthomatous ameloblastoma is based on histologic features, dentists and oral surgeons should consider this possibility in patients with an aggressive tumoral process.

Acanthomatous ameloblastoma of anterior maxilla

The unusual case of acanthomatous ameloblastoma occurring in maxillary left anterior region in a 13-year-old female child is presented with chief complaint of swelling in the upper left anterior region since one year and spacing between maxillary left central incisor and canine. Microscopic examination of surgically excised specimen revealed solid epithelial cell nests with peripheral palisading ameloblastic cells and the central squamous cell assemblage that was consistent with the findings of acanthomatous ameloblastoma type. Acanthomatous ameloblastoma is the extremely rare variant. The present report discusses issues related to the incidence of such formations in the target tissues.

Acanthomatous ameloblastoma with melanin pigmentation of the maxilla:Report of a case.

A case of acanthomatous ameloblastoma with melanin pigmentation occurring in the maxilla of a 27-year-old Japanese woman is reported. The microscopic examination of the biopsy and excision specimens of the tumor revealed proliferating ameloblastic tumor cells with a network of anastomosing strands. Within some epithelial strands, discrete foci of squamous metaplasia progressing to keratin pearl formation and dystrophic calcification were observed. Dark brown melanin granules were scattered in proliferating tumor nests and stromal connective tissue.