Bilateral Enophthalmos as an Unusual Presenting Feature of Non-Hodgkin's Orbital Lymphoma.

Lymphoma is the commonest orbital malignancy. The typical presentation is proptosis or swelling, which warrants imaging and confirmation by tissue biopsy. Enophthalmos is a much rarer clinical sign and if bilateral and symmetrical can often present late. We describe a patient who presented with bilateral enophthalmos and symptomatic, secondary entropion due to bilateral non-Hodgkin's lymphoma in which orbital fat was replaced by a monoclonal proliferation of small B cells. Low-dose orbital radiotherapy and entropion surgery relieved the patient's symptoms.