Scientific Journal Vol . I -2007 SQUAMOUS ODONTOGENIC TUMOR – A CASE REPORT Sandhya A. Tamgadge, Avinash P. Tamgadge, S. Bhalerao, Treville Periera, Swati Gotmare, Daivat M. Bhatt Abstract Squamous odontogenic tumor is a rare odontogenic tumor of epithelial origin and only few cases, around 40, have been reported in literature. The challenge is in diagnosing the tumor because of its close resemblance to acanthomatous ameloblastoma and desmoplastic ameloblastoma. Here we report a case of squamous odontogenic tumor in middle age female in anterior maxillae. Introduction Squamous odontogenic tumor is a lesion which has been recognized as apparent entity for a number of years but had not been named or reported until 1975, when Pullon and a small group of other oral pathologists combined their cases and published six cases. The most important aspect of this lesion is its mistaken histologic identification as an acanthomatous ameloblastoma or as a desmoplastic ameloblastoma. 1 Very few cases around forty have been published till now in literature, here we present a case of squamous odontogenic tumor in a 37 year old female. Keywords Squamous odontogenic tumor, squamous islands, desmoplastic ameloblastoma, mature fibrous stroma, odontogenic islands. Professor 1 , Professor & HOD 2 , Professor 3 , Professor 4 , Professor 5 , PG Student 6 , Dept Of Oral Pathology & Microbiology, Dr.D.Y.Patil Dental College and Hospital, Navi Mumbai Case report A 37 year old female reported at outpatient department with chief complaint of painless swelling of the left maxilla of 6 months duration. The patient was moderately nourished with an unremarkable medical history. Extraoral examination revealed a mild swelling over the left anterior maxilla. Intraorally , a diffuse, firm, non-tender swelling was noted in the buccal vestibule extending from the region of the left maxillary lateral incisor to second premolar. The mucosa over the swelling appeared normal with no secondary changes. A diffuse swelling was also noted on palatal aspect. A set of radiographs were taken which included periapical, occlusal and panoramic views.Radiographs revealed a large, well circumscribed, unilocular radiolucency with maxillary left lateral incisor and canine. The radiolucency was triangular in shape extending from lateral incisor and 2 nd premolar region.