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Adenomatoid odontogenic tumor (AOT) is always benign. Given the very rare recurrence rate and the zero potential of malignant transformation, authors have considered it a hamartoma. Accordingly, 'AOT' is no more than a misnomer. This report, however, describes the first recognition of cellular atypia and plemorphism in a peripheral orophayrngeal AOT which embraces an ameloblastic component. The overall picture was diagnosed, after careful histological and immunohitochemical assessment, as a peripheral adenoid ameloblastoma. This find may promote a new pathogenetic scenario to the nosology of this debatable lesion., (© Copyright Società Italiana di Anatomia Patologica e Citopatologia Diagnostica, Divisione Italiana della International Academy of Pathology.)

This paper reports a very rare case of isolated ulcerative lesion of the palate in a patient with type 2 diabetes mellitus. The patient refused to run any radiological tests, other than the periapical radiograph. This rendered the diagnostic dilemma more challenging. Through histochemical and immunohsitochemical stains, the case could be non-invasively diagnosed as caliber-persistent artery. All differential diagnoses were excluded based on concrete findings., (© Copyright Società Italiana di Anatomia Patologica e Citopatologia Diagnostica, Divisione Italiana della International Academy of Pathology.)