Dermatitis is simply persistently dry, dehydrated patches of itchy skin, and can be caused by all sorts of things. The type of dermatitis that comes about from pancreatic cancer is called eczematous dermatitis, but it can only be diagnosed once topical treatments don’t work.
Persistent dermatitis may be one of the earliest physical indications of pancreatic cancer, but your doctor won’t immediately link it unless you also have other symptoms on this list.
Non-cancerous causes of dermatitis include a poor diet, cosmetic products, and soaps, so be sure to mitigate those issues immediately if you suspect your case has to do with cancer. That way your doctor can check them off the list and you can be diagnosed much sooner.