Proptosis as initial manifestation of Burkitt's lymphoma with orbital involvement

A 35-year-old woman without any known systemic disorder presented with a complaint of painful and rapidly increasing proptosis in her right eye. Based on the clinical, radiological, analytical and ophthalmological assessments, the diagnosis made was Burkitt's lymphoma in acquired immunodeficiency syndrome.

Proptosis can be an unusual way of presenting with Burkitt's lymphoma associated with acquired immunodeficiency. This differential diagnosis is important because confirmation leads to a change in the vital prognosis of the patient.