Retrospective analysis of histopathological reports of intraosseous mandibular lesions among patients attended at a tertiary health facility in Tanzania

Objectives: To retrospectively determine the incidence of intraosseous mandibular lesions among patients who attended the University dental clinic in TanzaniaStudy design: A retrospective study of histological results of the intraosseous mandibular lesions diagnosed between 2016 and 2021. The information gathered included the age and sex of the patient, and histological diagnosis. Data analysis was done using Statistical Package for the Social Sciences version 26 computer program. Results: Out of 1824 reports of patients with oral and maxillofacial lesions retrieved, 475 (26 %) involved the intraosseous part of the mandible. Benign tumors comprised 68.2 % and malignant tumors 14.1 %. Ameloblastoma accounted for 54.3 % of the benign tumors, osteosarcoma comprised 37.3 % of the malignant tumors, and dentigerous cysts made up 70.4 % of mandibular cysts.Conclusion: Intraosseous mandibular lesions are common among patients who were biopsied at the university dental clinic. Although there is no sex predilection, young adults are more affected than other age groups. The majority of the lesions are benign and malignant tumors.