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Granulocytic sarcoma presenting as an epidural mass with cord compression
D J Ripp1, J W Davis, S S Rengachary
1Medical (Hematology) Service, Veterans Administration Medical Center, Kansas City, Missouri.
Neurosurgery
|January 1, 1989
Summary
Granulocytic sarcoma (GS) presenting before leukemia diagnosis is rare. This case highlights spinal cord compression from aleukemic GS, emphasizing diagnostic challenges and treatment strategies for this uncommon presentation.
Area of Science:
- Hematology
- Oncology
- Neurology
Background:
- Granulocytic sarcoma (GS) is an extramedullary tumor of myeloid blasts.
- Typically, GS occurs concurrently with or signals the onset of acute myeloid leukemia (AML).
- Rarely, GS can manifest before hematologic evidence of leukemia is apparent.
Observation:
- A patient presented with low back pain and lower extremity weakness.
- Imaging revealed spinal cord compression caused by granulocytic sarcoma.
- Crucially, the patient exhibited no peripheral blood or bone marrow evidence of leukemia at presentation.
Findings:
- This case represents an extremely rare instance of aleukemic granulocytic sarcoma causing spinal cord compression.
- Only four similar cases have been previously documented in medical literature.
- Aleukemic GS presentations are often misdiagnosed due to the absence of overt leukemia.
Implications:
- Accurate diagnosis of aleukemic GS is critical to avoid delayed or incorrect treatment.
- Diagnostic tools such as chloroacetate esterase staining and electron microscopy aid in confirming the myeloid origin of GS cells.
- Optimal management likely involves a combination of localized radiation therapy and systemic chemotherapy.