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Monosomy 5, 5q Deletion by FISH

TEST DIRECTORY

Test Name

Monosomy 5, 5q Deletion by FISH

Alternate Names

5q-

Description

Fluorescence in-situ hybridization (FISH) using a DNA probe set to detect deletions of the long arm of chromosome 5 or monosomy of chromosome 5 associated with myelodysplastic syndrome.

Test Code

67824

SPECIMEN REQUIREMENTS

Specimen

Bone marrow, neoplastic blood

Specimen Requirements

Formalin-fixed paraffin embedded tissue, bone marrow or peripheral blood collected in sodium heparin (green topped) tube

Storage Requirements

Store specimens at room temperature (15 to 30°C) until transported, adding a cold (refrigerator) pack during the summer months.

Causes for Rejections

Decalcified tissues are not accepted.

GENERAL AND TECHNICAL INFORMATION

Turn Around Time

Formalin-fixed paraffin embedded tissue: 7 days

Fresh tissue, bone marrow, and blood: 3-10 days

Methodology

Fluorescence in-situ hybridization (FISH)

CPT Code

Formalin-fixed paraffin embedded tissue: 88377
Fresh tissue: 88271, 88275, 88291