Isfahan University of Medical SciencesDental Research Journal1735-33279420121025Intraosseous polymorphous low-grade adenocarcinoma of mandible: A rare entity11671167ENGayathriRameshDepartment of Oral and Maxillofacial Pathology, Pacific Dental College and Hospital, Udaipur, Rajasthan, India. amug3r@yahoo.co.inRamManoharVandanaRaghunathRameshNagarajappa20121025Polymorphous low-grade adenocarcinoma is a rare type of minor salivary gland malignancy. The characteristic features of these tumors are the varied histomorphology and the malignant, albeitindolent behavior. It occurs commonly in the minor salivary glands, with the palate (58.5%) being the most common intra oral site. Maxillary area (2%), mandibular mucosal area (1.5%) and posterior trigone region (0.5%) are the least affected areas. An occasional case has been reported arising from an intraosseous location i.e the maxilla, and only two cases have been reported in the English literature originating from the mandible. One such very rare case of polymorphous low-grade adenocarcinoma of the mandible, which radiographically has a soap bubble appearance, is reported here. Key Words: Adenocarcinoma, adenoid cystic, mandible, salivary gland neoplasms