What is this summary about?Systemic sclerosis (SSc) is a condition that affects the immune system (the body's natural defence system) and causes the skin to harden and thicken in large patches. Research shows that 30% to 90% of people with SSc also have interstitial lung disease (ILD), a condition that causes inflammation and scarring of the lungs. When people have SSc and ILD, it is known as SSc-associated ILD or SSc-ILD. The authors of this plain language summary of publication (PLS-P) revi...