# Additional Information

- [Microsatellite Instability (MSI)](https://help.connected.illumina.com/illumina-ffpe-dna-prep-with-exome-2.5/additional-information/microsatellite-instability-msi.md): Microsatellite Instability (MSI) If MSI values are needed ahead of software updates, it is recommend to calculate MSI on the tumor fastq files in tumor-only mode in a separate DRAGEN analysis. Tumor-o
- [Quick check of run quality](https://help.connected.illumina.com/illumina-ffpe-dna-prep-with-exome-2.5/additional-information/quick-check-of-run-quality.md)
- [Spike-in panels](https://help.connected.illumina.com/illumina-ffpe-dna-prep-with-exome-2.5/additional-information/spike-in-panels.md)
- [Germline variants](https://help.connected.illumina.com/illumina-ffpe-dna-prep-with-exome-2.5/additional-information/germline-variants.md)
- [Troubleshooting the analysis](https://help.connected.illumina.com/illumina-ffpe-dna-prep-with-exome-2.5/additional-information/troubleshooting-the-analysis.md): Potential changes to the analysis settings to improve performance when analyzing Illumina FFPE DNA Prep with Exome 2.5 Enrichment.
- [Tumor-only analysis](https://help.connected.illumina.com/illumina-ffpe-dna-prep-with-exome-2.5/additional-information/tumor-only-analysis.md)


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