LAUSR

Objectives Chondromyxoid fibroma (CMF) is a rare benign cartilaginous bone tumor with a characteristic lobular architecture and chondromyxoid background, this tumor account for 5% of all maxillofacial bone tumors. Clinical presentation we present a CMF of the left maxilla in a 15 years old female, presented with a bone swelling in the molar area, No systemic disease, other than hypothyroidism, were know. Tomographic evaluation exhibit a bone formatting lesion on the left maxilla, incisional biopsy was performed and processed histologically. Histopathological diagnosis Fibro-osseous lesion not otherwise specified. Intervention the patient was subjected to a left max-illectomy. A final diagnosis of CMF was emitted. Outcome the patient is treated by a Maxillofacial Prosthetics and close clinical follow up by the Oral and Maxillofacial Surgeon, the patient is 6 months free of disease. Conclusions Lesion was identified as Fibro-osseous lesion not otherwise specified by the incisional biopsy; it exhibited lobular architecture and chondromyxoid background, after the tumor resection the histopathological features were confirmed in the entire tumor, this case in particular exhibit extensive chondroid areas give the possibility of another diagnosis like: chondrosarcoma, chondroid osteosarcoma, chondroblastoma or chondroma.