Myeloid Sarcoma Presenting as Multiple Lymphadenopathy: A Case Report

that is composed of immature myeloid cells. This tumor usually occurs in the course of, or rarely as a presenting sign of myelogenous leukemia (1), yet it can occur in patients with other myeloproliferative disorders or diseases such as polycythemia vera, myelofibrosis with myeloid metaplasia and hypereosinophilic syndrome (2). Myeloid sarcomas can involve any part of the body, but when they occur in the head and neck region, the most common sites are the skull and bony orbits. The case reports in the English literature of myeloid sarcoma presenting as lateral neck masses are very rare (3), and to the best of our knowledge, myeloid sarcomas have mostly manifested as localized tumor rather than as systemic disease. Therefore, we report on this rare case of myeloid sarcoma that presented with multiple lymphadenopathy in order to shed light on this unusual presentation.