case_images: PMC3347716_01
case_images: Lesion extension intraorally.
case_images: CRIM.DENTISTRY2012-351241.001.jpg
case_images: PMC3347716_01_CRIM.DENTISTRY2012-351241.001.jpg
case_images: fig1
case_images: Intraoral examination revealed bicortical expansion of the left maxillary alveolar ridge with the swelling extending from left first premolar to the first molar which was roughly elliptical in outline and nontender (Figure 1).
case_images: Orthopantomogram showing the lesion.
case_images: CRIM.DENTISTRY2012-351241.002.jpg
case_images: PMC3347716_01_CRIM.DENTISTRY2012-351241.002.jpg
case_images: fig2
case_images: The periphery of the lesion was surrounded by a well-defined radiolucent rim (Figure 2).
case_images: Radiograph showing the extent of lesion.
case_images: CRIM.DENTISTRY2012-351241.003.jpg
case_images: PMC3347716_01_CRIM.DENTISTRY2012-351241.003.jpg
case_images: fig3
case_images: Superiorly, the lesion was invading into the maxillary sinus and the inferior extent was almost till the alveolar ridge (Figure 3).
case_images: Intra-operative view of the tumor.
case_images: CRIM.DENTISTRY2012-351241.004.jpg
case_images: PMC3347716_01_CRIM.DENTISTRY2012-351241.004.jpg
case_images: fig4
case_images: Under strict aseptic precautions, complete excision of the tumor was performed through a buccal vestibular incision extending from canine to the second molar (Figure 4).
case_images: Excised specimen.
case_images: CRIM.DENTISTRY2012-351241.005.jpg
case_images: PMC3347716_01_CRIM.DENTISTRY2012-351241.005.jpg
case_images: fig5
case_images: Intraoperatively, the tumor was not very vascular and as it was well circumscribed which facilitated in toto excision (Figure 5).
case_images: Histopathological picture of the lesion.
case_images: CRIM.DENTISTRY2012-351241.006.jpg
case_images: PMC3347716_01_CRIM.DENTISTRY2012-351241.006.jpg
case_images: fig6
case_images: The specimen was sent for histopathological examination which confirmed the diagnosis of benign osteoblastoma.  Figure 6 shows vascularized fibrous connective tissue with bony trabeculae lined by numerous osteoblasts and scattered osteoclasts.