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Rhabdomyosarcoma presenting as acute leukemia
S Morandi1, A Manna, E Sabattini
1Section of Hematology and BMT Center Cremona General Hospital, Cremona, Italy.
Purpose:
We describe a case of a very unusual presentation of rhabdomyosarcoma.
Patient And Methods:
An 18-year-old woman presented with symptoms and signs compatible with acute leukemia. The bone marrow picture showed diffuse involvement sustained by undifferentiated blasts that turned out to be of striated muscle origin by immunochemistry. While it is well known that rhabdomyosarcoma may metastasize to the bone marrow, extensive marrow involvement with leukemic spread as a unique clinical manifestation is extremely rare.
Conclusion:
Our observation further confirms the need to consider rhabdomyosarcoma among the possible differential diagnoses in patients who present with a leukemic picture and atypical blasts lacking all hematopoietic markers.