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Test Catalog

Test ID: 83367    
Alveolar Rhabdomyosarcoma (ARMS) by Reverse Transcriptase PCR (RT-PCR), Paraffin

Method Description Describes how the test is performed and provides a method-specific reference

The paraffin-embedded tissue is deparaffinized, lysed, and digested. RNA is extracted using either the TRIzol kit (Invitrogen) or High Pure FFPE RNA Micro kit (Roche). DNase digestion is performed. RNA is converted to cDNA via reverse transcription; the cDNA is amplified via PCR. Primers specific for the alveolar rhabdomyosarcoma PAX3-FOXO1 and PAX7-FOXO1 transcripts are used. Controls are run with each specimen to assess possible contamination issues and overall test performance. The PCR products are separated by gel electrophoresis and stained with ethidium bromide. The agarose gel is viewed under ultraviolet light and photographed to document the results. The results are interpreted and reported by a working group pathologist. In some cases, the specimen is further analyzed by FISH and/or sequencing.(Edwards RH, Chatten J, Xiong QB, Barr FG: Detection of gene fusions in rhabdomyosarcoma by reverse transcriptase polymerase chain reaction assay of archival samples. Diagn Mol Pathol 1997;6:91-97)

PDF Report Indicates whether the report includes an additional document with charts, images or other enriched information


Day(s) and Time(s) Test Performed Outlines the days and times the test is performed. This field reflects the day and time the sample must be in the testing laboratory to begin the testing process and includes any specimen preparation and processing time required before the test is performed. Some tests are listed as continuously performed, which means assays are performed several times during the day.

Monday through Friday; 8 a.m.-5 p.m.

Analytic Time Defines the amount of time it takes the laboratory to setup and perform the test. This is defined in number of days. The shortest interval of time expressed is "same day/1 day," which means the results may be available the same day that the sample is received in the testing laboratory. One day means results are available 1 day after the sample is received in the laboratory.

3 days

Maximum Laboratory Time Defines the maximum time from specimen receipt at Mayo Medical Laboratories until the release of the test result

8 days

Specimen Retention Time Outlines the length of time after testing that a specimen is kept in the laboratory before it is discarded

1 week/7 days

Performing Laboratory Location The location of the laboratory that performs the test