Primary Intraosseous Squamous Cell Carcinoma

Case 1 A 65-year-oldman was referredto Oral and Maxillofacial medicinedepartment of Dental School ofShiraz University of Medical Science with a complaint of swelling on the right side of the mandible. The medical and family history was unremarkable. On careful history evaluation, the patient proposed that he was treated for right posterior mandibular pus discharge by a dentist 3 months ago by tooth 45 and 46 extraction. On intraoral examination, a tender, diffuse swelling (4cm × 5 cm) was presented involving the buccal and lingual aspects of the edentulous ridge of 45, 46 region extending from mesial side of right mandibular first premolar to right mandibular second molar. Ulcer with fibrino leukocytic membrane was seen on the surface, partly was normal in color and partly was red,firm in consistency, 43 and 44 had 3rd grade mobility, 47 and 48 had 2nd grade mobility, with no associated sinus tract or discharge. The right submandibular lymph node was palpable.