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Test Catalog

Test ID: FLRET    
Lung Cancer, RET (10q11) Rearrangement, FISH, Tissue

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


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

Identifying RET gene rearrangements in patients with late-stage, lung adenocarcinomas that are negative for EGFR mutations and ALK rearrangements

Testing Algorithm Delineates situation(s) when tests are added to the initial order. This includes reflex and additional tests.

This test does not include a pathology consult. If a pathology consultation is requested, 70012 Pathology Consultation should be ordered and the appropriate FISH test will be ordered and performed at an additional charge.


This test may be ordered independently or in addition to FLCA / Lung Cancer, ALK (2p23) Rearrangement, FISH, Tissue and FROS1 / Lung Cancer, ROS1 (6q22), FISH, Tissue. If ordered in addition to the other tests, this test would only be performed if no ALK rearrangement is identified. If an ALK rearrangement was identified, testing for a RET rearrangement would be cancelled.

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

Fluorescence In Situ Hybridization (FISH)

Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name

Lung Cancer, RET (10q11), FISH, Ts

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

Lung carcinoma
Non-small cell lung cancer