Fever vs Inflammation
Inflammation includes accumulation of inflammatory cells, such as neutrophils or macrophags, in a tissue. The typical four local signs of inflammation include redness (Latin rubor), heat (calor), swelling (tumor), and pain (dolor) (Britannica).

Fever is a symptom, which may or may not be present in a certain inflammatory condition. For example, lung inflammation in pneumonia is usually accompanied with fever, while joint inflammation in rheumatoid arthritis is not.