Cauda equina syndrome as a rare manifestation of leukemia relapse during postallograft period.

Here we report a 41-year-old woman with the diagnosis of acute myeloid leukemia. While being followed on remission after allogeneic peripheral blood stem cell transplantation, she developed systemic and central nervous system (CNS) relapse. CNS involvement presented first with meningeal irritation signs and then with cauda equina syndrome (CES). We define an interesting presentation of CES as abdominal pain and discuss the rare coexistence of the syndrome and leukemia under the light of the pertinent literature.