... histologic and non-cutaneous features of psoriasis facilitated diagnosis in this patient. The sclerotic plaque on the patient’s penile shaft resolved following biologic therapy for psoriasis. This rare presentation of genital psoriasis highlights important learning points for clinicians...

... of vitiligo induced by biological drugs in psoriatic patients are reported. However, improvements in psoriasis and pre-existing vitiligo after the introduction of biological therapy are also described. To date, anti-TNF-alpha is the most cited group of biological drugs that induce new-onset vitiligo...