Granulocytic sarcoma or chloroma is defined as an extramedullary solid
tumor, composed of granulocytic precursor cells at various levels of
differentiation. Granulocytic sarcoma is mostly associated with acute
and chronic leukemia, rarely with polycythemia vera and myelofibrosis.
The use of special immuno-histochemical stains is mandatory, because
this tumor is often misdiagnosed as malignant lymphoma. We report two
cases of granulocytic sarcoma (tonsil and ovary) associated with chron
ic myelogenous leukemia. We describe the first reported association of
atypical CML and granulocytic sarcoma.