title: Unilateral eyelid swelling, proptosis and diplopia as initial manifestation of acute myeloid leukemia.
abstract: Myeloid sarcoma is a tumor of immature myeloid cells occurring in many extramedullary sites, orbit being one of them where the tumor may occur prior to or after the diagnosis of underlying disease. We report a case of a 17-year-old male who presented with upper eyelid swelling, proptosis and diplopia after presumed blunt trauma without any other clinical signs and symptoms. Initial imaging suggested possibility of subperiosteal hematoma. Magnetic resonance imaging studies demonstrated a solid tumor. Complete excision of the tumor and histopathologic diagnosis revealed evidence of acute myeloid leukemia (AML). There were no other sites indicating any tumoral process; however, bone marrow aspirate revealed an evidence of systemic disease. After chemotherapy and allogenic bone marrow transplant, the patient had complete remission of his disease. An episode of graft vs host reaction resulting in severe dry eyes along with skin eruptions was treated successfully by immunosuppression and topical lubrication without any visual or systemic sequela. This case emphasizes on the need for an aggressive work-up for any unusual orbital lesion in the absence of any explainable etiology. Further, AML may be suspected in the cases of orbital tumors even in the absence of systemic manifestations of leukemia at any age.
authors: Oculoplastic and Orbit Division, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia.
authors: Imtiaz A
authors: IA
authors: Chaudhry
authors: Ahmad M
authors: AM
authors: Alaraj
authors: Hind M
authors: HM
authors: Alkatan
keywords: Acute proptosis; Evaluation; Myeloid leukemia; Treatment
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