Myeloid sarcoma

Name
Myeloid sarcoma
ICD-O-1 Morphology
9930/3
Effective 1978 - 1991
ICD-O-2 Morphology
9930/3
Effective 1992 - 2000
ICD-O-3 Morphology
9930/3
Effective 2001 and later
Reportable
for cases diagnosed 1978 and later
Primary Site(s)
See Abstractor Notes and Module 5 Rule PH10

Help me code for diagnosis year :

Grade
Code grade specified by pathologist. If no grade specified, code 9
Module Rule
M3 Module 5: PH10
Alternate Names
Chloroma
Extramedullary myeloid tumor
Granulocytic sarcoma
GS
Definition
Tumor mass of myeloblasts or immature myeloid cells occurring in a site other than bone marrow.
This is a solid tumor composed of immature malignant white blood cells called myeloblasts. A chloroma is an extremedullary manifestation of acute myeloid leukemia; in other words, it is a solid collection of leukemic cells occurring outside of the bone marrow.
Abstractor Notes
Do not code primary site to C421 (bone marrow).

Almost any site in the body can be involved; the most frequently affected sites are: the skin, lymph nodes, gastrointestinal tract, bone, soft tissue and testis. Myeloid sarcoma may occur de novo; it may precede or coincide with AML, or represent acute blastic transformation of myelodysplastic syndromes. Myeloid sarcoma may also be the initial manifestation of relapse in a patient with previously diagnosed AML.
Definitive Diagnostic Methods
Genetic testing
Histology
Immunophenotyping
Genetics Data
5q-
16q-
20q-
Inv(16)
MLL-rearrangement
Monosomy 7
Monosomy 16
Trisomy 4
Trisomy 8
Trisomy 11
Immunophenotyping
CD68/KP1
Treatments
Chemotherapy
Radiation
Transformations to
No Transformations
Transformations from
Corresponding ICD-9 Codes
205.3 Myeloid sarcoma
Corresponding ICD-10 Codes
C92.3 Myeloid sarcoma
Corresponding ICD-10-CM Codes (effective October 1, 2015 U.S. only)
C92.3 Myeloid sarcoma
Signs and Symptoms
None
Diagnostic Exams
None
Recurrence and Metastases
None
Epidemiology and Mortality
None