aggressive osteoblastoma (ao) is a benign osteoblastic tumor which is rare in the head and neck region. clinical and histological features are therefore overlap with other benign and low-grade malignant tumors. the aim of this article is to report and discuss the differential diagnosis of an aggressive osteoblastoma in the mandible. a 25-year-old male patient reported with pain and asymmetry on...

During the diagnostic investigation of a patient with ulnar wrist pain, a hot spot in the proximal ulna was revealed on the technetium scintigram, which was found on radiographs to correspond to an osteolytic lesion in the proximal ulna. The lesion was resected and the histological diagnosis was an osteoblastoma. The wrist symptoms disappeared after resection of the lesion in the proximal ulna.

A 45-year old female was admitted complaining of double vision. A CT scan revealed a mass originating from the petrous part of the temporal bone with infiltration of the cavernous sinus. The patient was operated and a subtotal excision of the tumor was achieved. Pathological examination revealed benign osteoblastoma. During an 18 year follow up period, no progression of tumor has been detected.