Adenomatoid hyperplasia (AH) is considered a non-neoplastic pathology of unknown etiology but mainly associated with trauma as the main causal factor, with frequent localization on hard and soft palate. The present case shows the first case of AH on the alveolar ridge associated with a poorly adapted removable prosthesis. An 81-year-old man with diabetes mellitus and arterial hypertension controlled presents a nodular tumor in the maxillary alveolar ridge of the color of the mucosa, with a firm consistency and defined edges measuring 1.5 x 0.7 cm in diameter, asymptomatic and associated with a lack of a 1.3 prosthetic tooth reporting 6 years of evolution. Excisional biopsy and histopathological study were performed with glandular acini hyperplasia. The AH is observed in 80 % of cases on the palate followed by the oral mucosa, tongue and retromolar area, but without reports on the gingiva or alveolar ridge. The most associated causal factor is chronic trauma, mainly associated with poorly adapted prostheses, although there are studies of an aberrant chromosome with an unknown role both in his pathogenesis and possible malignant potential. In the current case, the lesion is strongly associated with a poorly adapted removable prosthesis, suggesting a lesion with a reactive appearance. Therefore, AH should be included as a differential diagnosis both at the palatal level and in other locations including the alveolar ridge. In addition, it should be considered when there is a traumatic etiological factor such as poorly adapted removable prostheses, It’s confirmation by histopathological study being necessary, especially due to its similarity with other pathologies.
KEY WORDS: adenomatoid hyperplasia, adenomatous hyperplasia, minor salivary glands.
How to cite this article
AHUMADA-OSSANDÓN, R. & CLAVERÍA-JIMÉNEZ, R. Adenomatoid hyperplasia in maxillary alveolar ridge: an unusual presentation. Int. J. Odontostomat., 16(2):185-188, 2022.