Clinical problems related to the integument are very common and contribute up to 15% of all general practitioner presentations. Humans are predisposed to a multitude of skin diseases ranging from acne and atopic dermatitis to psoriasis, autoimmune diseases such as SLE, vasculitis, skin cancers, viral exanthems, drug eruptions and external manifestations of internal disease - which in the gastroenterology world have erythema nodosum and pyoderma gangrenosum as interesting examples of these.

Clinical problems related to the integument are very common and contribute up to 15% of all general practitioner presentations. Humans are predisposed to a multitude of skin diseases ranging from acne and atopic dermatitis to psoriasis, autoimmune diseases such as SLE, vasculitis, skin cancers, viral exanthems, drug eruptions and external manifestations of internal disease - which in the gastroenterology world have erythema nodosum and pyoderma gangrenosum as interesting examples of these.