# Current diagnosis, epidemiology, and management of interstitial lung abnormalities

## TL;DR

This review discusses interstitial lung abnormalities, their risk factors, and management, focusing on how they may lead to future lung disease.

## Contribution

The paper provides a narrative review of ILA definitions, epidemiology, and management strategies, highlighting current challenges and knowledge gaps.

## Key findings

- ILAs are often found in older ever-smokers during CT scans for unrelated reasons.
- There is growing interest in understanding ILA risk factors due to increasing prevalence.
- Current management and definitions of ILAs remain unclear and require further research.

## Abstract

Interstitial lung abnormalities (ILAs) are incidental nondependent radiologic findings that may portend early or future interstitial lung disease (ILD), but do not meet specific criteria at the time of presentation. They are subclinical by definition and found more commonly in older ever-smokers undergoing computed tomography (CT) imaging for other indications, including cardiac or lung cancer screening programs. As ILA prevalence increases, driven by an aging population and heightened awareness in younger patients, understanding risk factors for their development and progression has gained recent interest, particularly for optimizing subsequent ILD outcomes. This narrative review summarizes current ILA definitions, epidemiology, risk stratification, and management, while highlighting current challenges and knowledge gaps.