A scientist who examines tissue changes that might indicate disease is called a histopathologist.

Here's a breakdown of the term:

* Histo- refers to tissues.

* Patho- refers to disease.

* -logist indicates someone who studies or specializes in a field.

Histopathologists use microscopes to examine thin slices of tissue, called histological sections, looking for abnormalities that suggest a disease process. They play a crucial role in diagnosing diseases like cancer, infections, and inflammatory conditions.