Adenomatoid hyperplasia (AH) is an unusual entity which simulates salivary gland neoplasm. As suggested some lesions indicate reactive hyperplasia due to the chronic trauma by the ill-fitting complete dentures but here in the present case it's due to a fixed prosthesis. Here is an AHMSG occurring in a rare location that is in the lingual vestibule. Meticulous histopathological examination is an effective diagnostic tool to arrive in the diagnosis of AH. METHODS A 60 years male patient with a lesion in the lingual vestibule of slow growth and an ulcer noted on the surface due to the trauma from the prosthesis. The patient was unaware of the growth and a provisional diagnosis made by the clinician was an irritational fibroma with traumatic ulcer but the final diagnosis turned to be AHMSG. CONCLUSIONS The present case and previous case series suggest AH has a male preponderance. Histological analysis is a basic fundamental in arriving at a proper diagnosis. It's a 102-case added to the available web knowledge world-wide on AHMSG and the 4th case in India to be noted in the Indian literature. CONCLUSIONS The differential diagnosis of the lingual vestibular placed exophytic lesions should include AHMSG.