Translocation Detection by Reverse transcriptase polymerase chain reaction (RT-PCR). All tests are designed to amplify PCR products less than 200bp. All tests are comlemented by amplification of a relevant housekeeping gene to test the quality of the RNA.

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When requesting this test please use the referral form provided. Please also refer to any additional information provided for this test. Download the referral form >

Additional information

A soft tissue sarcoma of young adults. Also known as malignant melanoma of soft parts. Molecular testing is by RT-PCR for the EWS-ATF1 fusion transcript. FISH using the EWSR1 breakapart probe is a complmentary test. The majority of cases demonstrate this translocation.

Sending address

Paediatric Malignancy Unit Great Ormond Street Hospital for Sick Children Level 2, Camelia Botnar Laboratories Great Ormond Street London WC1N 3JH

Laboratory service

Paediatric Malignancy Unit

Sample requirements

Fresh, frozen or FFPE tissue. If sending FFPE rolled tissue sections please send the equivalent of 80 uM of tissue.

Reference range

Not applicable

Turnaround time

3-5 working days

Disease / group

Clear Cell Sarcoma


Upon request

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Please call in advance to discuss requirements

Paediatric Malignancy Unit

The Paediatric Malignancy Unit is a unit providing a wide range of molecular genetic and cytogenetic diagnostic tests.

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