A rare case of unilateral double Stafne bone defects and literature review.

Stafne bone defect (SBD) is a rare developmental bone defect characterized by an asymptomatic focal concavity of the cortical bone, typically on the lingual aspect of the mandibular body, which generally contains salivary gland tissue. It can be detected during routine dental examinations and typically appears as an ovoid, well-defined, well-corticated, radiolucent depression in the posterior mandibular region below the inferior alveolar nerve (IAN) (in: Neville et al, Oral and maxillofacial pathology, Elsevier, Inc, St. Louis, MO, 2016).An 80-year-old male presented to our clinic for a routine dental examination. Panoramic radiography and cone-beam computed tomography (CBCT) displayed two well-defined, well-corticated, ovoid radiolucencies inferior to the IAN canal on the left mandibular molar region. The working diagnosis was SBD, and the patient was informed of the findings. Irregular margins on the superior aspect of the anterior defect were noted on CBCT imaging; therefore, follow-up with panoramic images at 6 months, 1 and 5 years was recommended.

An unusual presentation of osteoblastoma of the maxilla: A case report.

This report presents a rare case of maxillary osteoblastoma in a 17-year-old female. The patient presented with dull pain and facial asymmetry inferior to the left zygoma. An intraoral examination found a painless swelling on the buccal gingival tissue in the left posterior maxilla. Panoramic radiographs and multidetector computed tomographic images revealed an ill-defined, non-corticated, mixed attenuating entity of osseous density located within the left posterior maxilla apical to the left maxillary molars. The entity exhibited a heterogeneous internal structure with a fine granular appearance, and the periphery showed a partial hypo-attenuating rim along the antero-medial aspect. Expansion of the left posterior maxilla accompanied with displacement of the left maxillary sinus floor was noted. External root resorption of the first and second molars was noted, as well as postero-superior displacement of the third molar. The histopathologic diagnosis of the biopsy was osteoblastoma. Complete excision of the tumor was performed.

Osteoblastoma of the maxilla and mandible: a report of 24 cases, review of the literature, and discussion of its relationship to osteoid osteoma of the jaws.

Osteoblastoma is a benign neoplasm of bone characterized by a proliferation of osteoblasts forming bone trabeculae set in a vascularized fibrous connective tissue stroma. We report 24 examples of this neoplasm arising in the maxilla and mandible and compare the clinical and radiographic characteristics of this neoplasm to 53 previously reported examples of osteoblastoma and osteoid osteoma in the jaws. Our results reveal more females reported in the new examples of osteoblastoma than in the previously reported examples of osteoblastoma and osteoid osteoma. This raises the overall female percentage from 47.2% to 58.4%. In addition, significantly fewer patients reported pain, tenderness, and discomfort associated with their neoplasms than in previously reported cases. When all cases are combined, a predominant trend is observed whereby osteoblastoma occurs predominantly on the left side of the posterior mandible and is associated with pain, tenderness, and discomfort. We also provide a rationale for use of the term "osteoblastoma" for any benign osteoblastic neoplasm arising in the jaws.