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Test Catalog

Test ID: FCHOP    
Myxoid/Round Cell Liposarcoma 12q13 (DDIT3 or CHOP) Rearrangement, FISH, Tissue

Specimen Type Describes the specimen type needed for testing


Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.

Provide a pathology report with each tissue specimen. The laboratory will not reject a specimen that arrives without this information but will hold the specimen until a pathology report is received.


Specimen Type: Tissue block and slide

Collection Instructions: Submit formalin-fixed, paraffin-embedded tumor tissue block and include 1 hematoxylin and eosin-stained slide.

Forms: If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:

Oncology Test Request Form (T729) (

Cardiovascular Test Request Form (T724) (

Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.

Paraffin-embedded whole tissue or four, 5-micron thick sections plus 1 hematoxylin and eosin-stained slide

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected










Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.

Specimen TypeTemperatureTime
TissueAmbient (preferred)