Laboratory Services

Myelodysplastic Syndrome (MDS)

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Updated Test Information:

Test Description
Myelodysplastic Syndrome (MDS)


General Information

Probes: EGR1 (5q31.2)/D5S630 (5p15.31), D7S486 (7q31.2)/CEP7 (7q11.21q11.22), D20S108 (20q12)/CEP8 (8q11.1q11.2), KMT2A (11q23.3) (probe sets may be ordered separately)

Disease(s): Myelodysplastic Syndrome (MDS)

Specimen Requirements

Bone Marrow Aspirate and Peripheral Blood
2-5 mL Sodium Heparin tube (preferred)
EDTA tube (acceptable)
Fixed-cell pellet from cytogenetic analysis slides with metaphase and/or interphase nuclei. (If sending slides please send at least 6 slides for testing)

Additional Processing Details

Transport to the testing lab at room temp is acceptable. Do not allow sample to overheat or freeze. Use cold pack for transport, making sure cold pack is not in direct contact with specimen

Required Information

Complete the Incyte Diagnostics hematology requisition with the patient's demographics and relevant clinical history. Label the specimen containers with patient's full name, second unique identifier, and specimen site/source. Please provide a copy of the patient's complete blood count (CBC) report.

Unacceptable Specimen Conditions

Specimen containers without two (2) patient identifiers, specimens submitted in inappropriate collection media, frozen specimens.

Department (code)



Fluorescence in-Situ Hybridization (FISH)

Estimated TAT

3–5 working days from receipt

Testing Schedule



7 days after release of final report

CPT Code(s)

88377x4 manual

Additional Information

Clinical Significance: The MDS FISH panel identifies the most frequent cytogenetic abnormalities associated with favorable, intermediate, and poor risk according to IPSS guidelines (since revised).

If Flow Cytometry studies are also being ordered, it is preferable to submit an EDTA (purple top) tube specifically for Flow Cytometry. if only one tube can be submitted, please submit one sodium heparin (green top) tube for both FISH and Flow Cytometry studies