[Rapidly progressing unilateral proptosis in a 6-year-old girl].

This report describes the case of a 6-year-old girl who presented with painless swelling of the right orbit since 4 weeks and moderate proptosis. Tests revealed visual acuity RE 6/6, LE 6/6, normal intraocular pressure (IOP), anterior and posterior segments normal. Ultrasound examination showed multiple lesions in the spleen, normal liver, no abdominal mass and enlarged abdominal lymph nodes. Fine-needle aspirate results were not available at the time of clinical decision-making. In Malawi the treatment for all stages of Burkitt's lymphoma is intravenous cyclophosphamide (40 mg/kg on day 1 and oral cyclophosphamide 60 mg/kg on days 8, 18 and 28). Intrathecal hydrocortisone (12.5 mg) and methotrexate (12.5 mg) are given with each treatment cycle.