Treatment Challenges with Benign Bone Tumors of the Orbit

A large maxillary cemento-ossifying fibroma superimposed with solitary bone cyst documented over 18 years: A case report

INTRODUCTION

Cemento-ossifying fibromas are rare, benign lesions of the head and neck regions. The origin of these lesions can be traced to the periodontal ligament, because its cells are able to form cement, lamellar bone, or fibrous tissue.

CASE PRESENTATION

A rare case report of a young Caucasian female with a COF is described including follow-ups. She remained untreated for several years despite early radiographic findings of the lesion without a definitive diagnosis. The patient ultimately underwent radical surgery and the whole lesion was removed. The subsequent histological examination confirmed the clinical diagnosis of a COF. Since then, the patient has been under regular clinical and radiological follow-ups.

DISCUSSION

This rare case report of a COF, documented over 18 years, shows the importance of consecutive therapy after radiologic and clinical findings, as such lesions continue growing and may subsequently lead to severe medical conditions. Therefore, complete surgical resection of COFs is advised to achieve good results in terms of health and recurrence.

CONCLUSION

Long-term follow-up of patients is required as recurrences can occur for up to 10 years following treatment. Well-planned radical and wide surgical resection of these lesions has proven not only to be effective in eliminating the aetiological factors, but can also achieve decent bone regeneration and aesthetic results with almost no deformation in the surgical site.

Giant cell tumour of frontal bone in a patient with bilateral retinoblastoma

A case is presented of a 5 year-old patient with bilateral hereditary retinoblastoma treated with radiotherapy in the right eye and enucleation of the left eye. After three years without evidence of progression, the patient presented with a right orbital mass that compromised the frontal bone. After surgical excision, the histology analysis was consistent with a diagnosis of giant cell tumour. Primary orbital bone neoplasms, such as giant cell tumours, are extremely rare. Both radiological and histopathology studies are essential to establish the differential diagnosis of orbital mass lesions.