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Test Catalog

Test ID: MSH2M    
MSH2 Mutation Screen

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

DNA sequence analysis is performed to test for the presence of a mutation in all 16 exons of the MSH2 gene. Additionally, gene dosage analysis (multiplex ligation-dependent probe amplification [MLPA] or Southern blot analysis) is used to test for the presence of large deletions and duplications in the MSH2 gene (all exons) and the deletion of 2 probes in the 3-prime untranslated region of the TACSTD1/EPCAM gene.(Baudhuin LM, Mai M, French AJ, et al: Analysis of hMLH1 and hMSH2 gene dosage alterations in hereditary nonpolyposis colorectal cancer patients by novel methods. J Mol Diagn 2005 May;7[2]:226-235)

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.

Friday; 10 a.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.

14 days

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

20 days

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

Whole Blood: 2 weeks (if available) Extracted DNA: 3 months

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