Psoriasis and skin cancer – Is there a link?

•Psoriasis causes generalised and organ-specific malignancies.•Chronic inflammation and psoriasis therapy boost cancer risk.•Cytokines IL and TNF-α are associated with psoriasis and various cancers.•Psoriasis is associated with smoking, obesity and drinking.•Biologics, phototherapies and topical medicines may raise the risk of certain malignancies.