We describe a patient with acute myelogenous leukemia who suffered a small
bowel obstruction on the second day of chemotherapy. The patient had to be
operated immediately, and the terminal ileum and a part of the colon was re
moved. The resected specimen showed leukemic infiltration (chloroma) of the
bowel with marked atrophy of the muscular layer. However, there was no com
plete stenosis. For this reason we believe that the reason for the acute ab
dominal symptoms on the second day of chemotherapy could be paralysis of th
e bowel due to muscular atrophy.