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M

Microsatellite Instability High

MSI-H

test

Last updated: Reviewed by Dr. Ahmad Arafat Hasan

Definition

Marker of tumor responsiveness to immunotherapy.

Overview

Microsatellite Instability High (Arabic: MSI-H)

Marker of tumor responsiveness to immunotherapy.

This term is classified as: medical test.

This explanation is for general educational purposes only and is not a substitute for medical advice from a qualified physician. If you experience symptoms or have concerns, please consult your healthcare provider immediately.

Frequently asked questions

What is Microsatellite Instability High in Arabic?

Microsatellite Instability High in Arabic is MSI-H.

What does MSI-H mean in English?

MSI-H means Microsatellite Instability High in English. Marker of tumor responsiveness to immunotherapy.

Medical authoring & review

Last reviewed: 20 October 2026Last updated: 12 September 2026