Chondromyxoid fibroma of zygomatic bone: A case report

• Published in: Annals of medicine and surgery Vol. 75; p. 103394
• Main Authors: Elzouiti, Zainab, Sbai, Achraf, Bennani, Amal, Elayoubi, Fahd, Eabdenbi Tsen, Adil
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01-03-2022; Elsevier
• Subjects: Case Report; Chondromyxoid fibroma; Conservative approach; Zygoma; Conservative approach; Case report; Chondromyxoid fibroma; Zygoma
• ISSN: 2049-0801; 2049-0801
• DOI: 10.1016/j.amsu.2022.103394

Chondromyxoid fibroma (CMF) is a rare benign bone tumor that typically affects long bones, only 2% of CMFs involved facial bones or skull, zygomatic localization is extremely rare with only 8 cases reported in literature so far.
We report a case of 88 old years patient with painful swelling in the right zygomatic around 1 year, progressively increasing in volume, Computed tomography (CT) scan showed an osteolytic lesion in the right zygomatic bone with cortical destruction. Surgical management consisted of bone curettage using intra oral approach, the histopahological findings were in favor of the diagnosis of CMF.
CF is a rare bone tumor and represents less than 1% of all bone tumors, the maxillofacial bones are rarely affected, with the mandible as a site of predilection, the zygomatic location is extremely rare. The clinical presentation is not typical, radiologically, the lesion is usually osteolytic with well defined margins.En bloc resection is the gold standard, some authors recommand conservative approach to avoid esthetic and functional sequels.
We reported a very rare presentation of CF involving zygomatic bone treated by conservative approach.
Chondromyxoid fibroma involving an extragnathic bone in facial skeleton is very rareClinical and radiological presentations are not specificThe classic histological finding of chondromyxoid fibroma is stellate or spindle-shaped cells arranged in lobules with a myxoid backgroundThe surgical managment consisted of en bloc resection or conservative curettage