Diagnosis please Patient has had this for more than 3 years. Rough , hard and scaly skin. Dark round region which gets itchy and patient says feels a sense of relief when scratching (feels like blood flows rapidly to all parts of the body)
can be psoriasis. check patient's nails for pitting and joints for any signs of arthritis. also ask the patient whether he has bleeding after scartching the plaque or not. if he has small bleeding spots after scratching or detaching the plaque from his skin, then he has a positive "auspitz sign" which is in favor of psoriasis again.