Punnya ANGADİ3, Kaveri HALLİKERİ2, Chetana BHAT1

1Department of Oral Pathology,Manipal College of Dental Sciences, Manipal 2Department of Oral and Maxillofacial Pathology, SDM College of Dental Sciences and Hospital, Dharwad. 3Department of Oral and Maxillofacial Pathology, KLEVK Institute of Dental Sciences, Belagum

Osteoblastomas are biologically benign tumors with limited growth potential and may show a wide range of clinical, radiographic and histopathological findings. Osteoblastomas of the jaw may resemble other gnathic lesions including osteoid osteoma, cementoblastoma, cement-ossifying fibroma, cemento-osseous dysplasia and osteosarcoma, offering a unique diagnostic conundrum. Aggressive osteoblastoma, a rare variant of osteoblastoma characterized by the presence of atypical histopathological features like epithelioid osteoblasts and exhibiting locally aggressive behavior is rarely reported in the jaw bones. The accurate diagnosis and delineation of this entity from malignant bone tumors sometimes may be a challenge. The case report emphasizes this entity, which has to be differentiated from low- grade osteosarcoma and highlights the gravity of clinico-pathologic correlation in such lesions.

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