HealthAugust 6, 2026

myosteatosis

MY-oh-stee-uh-TOH-sis

Definition

The abnormal infiltration and accumulation of fat within muscle tissue, which serves as an indicator of poor muscle quality.

Etymology

The word is derived from the Greek 'mys' (muscle), 'osteon' (bone—historically linked to muscle/connective study), and 'steatosis' (abnormal retention of fat within a cell or tissue).

In the news

In this article, myosteatosis is identified as a potential biomarker extracted via AI from CT scans, allowing doctors to predict future COPD risk before symptoms manifest.

Myosteatosis Emerges as a Potential COPD Biomarker

Read the full article ↗

Radiological Society of North America | RSNA

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