6Rashes or Red Patches
Mycosis fungoids are one form of cancer that affects your skin might usually start with very itchy, red, flat plaques or patches that can be that are easily mistaken for psoriasis or eczema. It can transition from these spots to dome-shaped nodules, and eventually to substantial parts on different areas of your body such as bones, liver, lungs, and lymph nodes. However, you will often see it starting first on the chest, armpits, hips, groin, and buttocks. Other types of cancer like breast cancer could metastasize and spread to the skin, which might be initially mistaken for a harmless rash. [6]
