Myeloid sarcoma resulting in a small bowel obstruction with multiple site involvement including ileum and appendix.

Myeloid sarcoma (MS) is a rare extra-medullary solid tumor of immature myeloid cells. While it can be an isolated diagnosis, MS is frequently associated with acute myeloid leukemia, chronic myeloid leukemia and myelodysplastic disorders. Although there have been few cases documented that demonstrate the presence of MS in multiple organs at presentation, concomitant involvement of ileum and appendix has never been described. We treated a patient who presented with a small bowel obstruction at the ileum secondary to MS with involvement of the appendix. The patient subsequently underwent a bone marrow biopsy which was negative for evidence of leukemia. He began treatment with induction chemotherapy.