A preoperative presumptive diagnosis of ameloblastoma is sometimes made in the light of available clinical and radiological data, which are generally not very characteristic. The final diagnosis can only be made on the basis of histologic features. In this paper, a case of ameloblastoma diagnosed preoperatively by fine-needle aspiration cytology is presented and the potential value of this tech...

The ameloblastoma, because of its aggressive clinical behavior and its histological feature apparently benign, constitutes a puzzling paradox. Some hypotheses concerning this strange clinicalhistologic contradiction are analyzed, as well as the additional paradox represented by the neoplastic parenchyma itself, in which a tissue consisting of cells nominally able to form enamel do not elaborate...

We conducted a retrospective study of 36 cases of ameloblastoma from the files of Mittaphap Hospital in Vientiane Capital, Laos. Clinical findings showed an average patient age of 31.0 ± 3.8 years, with a slight male preponderance. Radiographically, all of the lesions showed multicystic radiotranslucency. Twenty-four patients underwent tumor resection and 12 underwent tumor enucleation. Of thos...

Incipient odontogenic tumors often display intermediate features between two or more lesions leading to diagnosis dilemma. We report the onset of a peripheral ameloblastoma fortuitously found subjacent to a nondysplastic leukoplakia in the region of missing 38 teeth of a 52-year-old man. The aim of this paper is the discussion of the microscopical features observed in the case reported which al...

BACKGROUND The aim of the present article is to report a case of ameloblastic carcinoma and use a marker alpha smooth muscle actin as a tool to differentiate cases of ameloblastic carcinoma from that of ameloblastoma. METHODS Case study reporting a case of ameloblastic carcinoma (AC) with expression of alpha smooth muscle actin (alpha-SMA) as a marker for emergence of stromal myofibroblasts. ...

AIM To report a case of a non-neoplastic variant of calcifying odontogenic cyst (COC) with the lining epithelium showing ameloblastomatous proliferation and capsule exhibiting features of a cholesterol granuloma. The importance of delineating this histologic variant from unicystic ameloblastoma and the formation of cholesterol granuloma in this variant is discussed. BACKGROUND Calcifying odon...

Granular cell ameloblastoma (GCA) is a well recognized variant of follicular ameloblastoma with extensive granular cell change. In contrast, plexiform granular cell odontogenic tumor (PGCOT) is a rare and recently described lesion characterized histologically by a monophasic plexiform pattern of granular cells. In this paper, two cases of an unusual granular cell odontogenic tumor exhibiting co...

Ameloblastoma is a benign epithelial odontogenic tumour but is often aggressive and destructive, with capacity to attain great size, erode bone and invade adjacent structures. They are the commonest neoplasms affecting jaws, with a high rate of recurrence if not removed adequately. Its incidence, combined with its clinical behaviour, makes ameloblastoma the most significant odontogenic neoplasm...

BACKGROUND Odontogenic keratocyst (OKC) is a developmental odontogenic cyst with an aggressive clinical behavior suggesting a change in its terminology from a cyst to a tumor and has now been renamed as keratocystic odontogenic tumor (KCOT). The purpose of this study was to assess and compare angiogenesis in ameloblastoma and OKC. MATERIALS AND METHODS Angiogenesis was assessed by studying th...

In this study we present a rare case of peripheral desmoplastic ameloblastoma and discuss its clinical features, histopathology, and immunohistochemical profile. This article reports a new case of this unusual neoplasm in a 66 year-old woman in which the main complaint was an asymptomatic swelling located in the right body of mandible. Histopathological findings were similar to the two previous...