Test Catalog

Test ID: CLLDF    
Chronic Lymphocytic Leukemia (CLL), Diagnostic FISH, Varies

Useful For Suggests clinical disorders or settings where the test may be helpful

Detecting a neoplastic clone associated with the common chromosome abnormalities seen in patients with chronic lymphocytic leukemia (CLL)


Identifying and tracking known chromosome abnormalities in patients with CLL and tracking response to therapy


Distinguishing patients with 11;14 translocations who have leukemic phase of mantle cell lymphoma from patients who have CLL


Detecting patients with atypical CLL or other forms of lymphoma associated with translocations between IGH and BCL3

Reflex Tests Lists tests that may or may not be performed, at an additional charge, depending on the result and interpretation of the initial tests.

Test IDReporting NameAvailable SeparatelyAlways Performed
CLLDBProbe, Each Additional (CLLDF)NoNo

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

This test includes a charge for the probe application, analysis and professional interpretation of results for 6 probe sets (12 individual fluorescence in situ hybridization probes). Additional charges will be incurred for all reflex or additional probe sets performed.


Panel includes testing for the following abnormalities using the probes listed:

6q-, D6Z1/MYB

11q-, D11Z1/ATM

+12, D12Z3/MDM2

13q-, D13S319/LAMP1

17p-, TP53/D17Z1

t(11;14), CCND1/IGH


When an additional IGH signal is identified in the absence of a CCND1/IGH fusion, reflex testing using the IGH/BCL3 probe set will be performed to identify a potential IGH/BCL3 fusion [t(14;19)(q32;q13)].


This assay detects abnormalities observed in the blood and bone marrow of patients with chronic lymphocytic leukemia. If a paraffin-embedded tissue sample is received, this test will be cancelled and SLL / Small Lymphocytic Lymphoma, FISH, Tissue will be added and performed as the appropriate test.

Method Name A short description of the method used to perform the test

NY State Available Indicates the status of NY State approval and if the test is orderable for NY State clients.


Reporting Name Lists a shorter or abbreviated version of the Published Name for a test

CLL, Diagnostic FISH

Aliases Lists additional common names for a test, as an aid in searching

11q- (11q deletion) or ATM
13q- (13q deletion) or LAMP1
17p- (17p deletion) or TP53
6q- (6q deletion) or MYB
t(11;14)(q13;q32) - CCND1/IGH