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SEER Inquiry System - Report
Produced: 10/31/2025 5:36 AM
Question 20120044
Inquiry Details
References:
Heme & Lymph Manual & DB
Question:
Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are accessioned if a patient is diagnosed with acute monocytic leukemia in 2009 and in 2011 has biopsy confirmed granulocytic sarcoma of the cerebellum? See Discussion.
Discussion:
Is this a recurrence of the patient's leukemia? In 2011, the patient is found to have several masses in the cerebellum, biopsy confirmed granulocytic sarcoma. The physician stated this is an "extramedullary relapse of leukemia." The bone marrow biopsy in 2011 was negative.
Answer:
For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.
Accession a single primary per Rule M3. Code histology to 9891/3 [acute monocytic leukemia] diagnosed in 2009 and primary site to C421 [bone marrow].
Per Rule M3 a single primary is reported when a sarcoma is diagnosed simultaneously or after a leukemia of the same lineage. Histology 9891/3 [acute monocytic leukemia] is listed as one of the histologies in the "same lineage." Myeloid sarcoma (9930/3) diagnosed simultaneously with or after acute myeloid leukemia (9861/3) or another leukemia of the myeloid lineage (9840/3, 9865/3-9867/3, 9869/3-9874/3, 9891/3, 9895/3-9898/3, 9910/3, 9911/3 and 9931/3).
NOTE: Under the Alternate Names section of the Heme DB, granulocytic sarcoma is a synonym for myeloid sarcoma.
Per PH10, code the primary site C421 [bone marrow] and code the histology acute myeloid leukemia, NOS (9861/3) or any of the specific AML histologies (9840/3, 9865/3-9867/3, 9869/3-9874/3, 9891/3, 9895/3-9898/3, 9910/3, 9911/3 and 9931/3) when the diagnosis is myeloid sarcoma (9930/3) AND there is a simultaneous or previous diagnosis of acute myeloid leukemia.
SEER*Educate provides training on how to use the Heme Manual and DB. If you are unsure how to arrive at the answer in this SINQ question, refer to SEER*Educate to practice coding hematopoietic and lymphoid neoplasms. Review the step-by-step instructions provided for each case scenario to learn how to use the application and manual to arrive at the answer provided. https://educate.fhcrc.org/LandingPage.aspx.
History:
This SINQ question has been updated to the Hematopoietic & Lymphoid Neoplasm Manual & Database published January 2014.
The original answer below was written based on the rules in 2012
Accession a single primary, the acute monocytic leukemia [9891/3] diagnosed in 2009. Refer to 20110098. In the 2010 Hematopoietic Coding Manual, there were no MP/H rules that reinforce this answer. These rules were added to the 2012 Heme Manual.
The granulocytic (myeloid) sarcoma is not a new primary. Both the acute monocytic leukemia and the granulocytic sarcoma are myeloid neoplasms. As the physician stated, the granulocytic sarcoma is "metastatic" from the acute myeloid leukemia.
