The ameloblastoma is defined as a locally aggressive and invasive tumor with a high capacity for recurrence. This aggressive and invasive behavior raises the question of conservative or radical choice of treatment, functional disorders, cosmetic and psychological results in the latter. Unicystic ameloblastoma is described as a lesion with specific morphological tables, a less aggressive biological behavior than the common ameloblastoma and a lower recurrence rate compared to conservative therapy, so we have a case managed in the Department of Oral and Maxillofacial Surgery of the Peruvian University Cayetano Heredia in Lima, Peru, of a 9-year-old female with a facial asymmetry at the expense of a tumor in the left mandibular body of two months of evolution. It was decided immediately after admission to our institution incisional biopsy with aspiration with slim needle, obtaining a pathological diagnosis of type unicystic luminal ameloblastoma. Continues to be handled after 9 years with a procedure called marsupialization with curettage after a second surgical procedure and is demonstrated by the clinical and radiographic evaluation the non-recurrence of injury, having a disease-free tissue. The purpose of this research is to demonstrate the different methods of conservative treatment for the unicystic ameloblastoma demonstrating the service experience of our long-standing treatment that has shown great therapeutic effectiveness with a low recurrence rate at the end showing a treatment with less morbidity for the patient.

Conflict of interest: None declared.