A patient of hyperthyroidism, treated with Radioactive Iodine in 2016. It is now a hypothyroid with antithyroid globulin positive and on 25 microgram of thyroxine with TSH 0.5 which is taken recently. He is complaining of swollen lower limbs with blackening of the skin over it and sensation of burning over the skin since one year and if he starts scratching the skin it continues for hours.
Concerned person is non-diabetic, non-smoker and one who performs a desk job. What could be the probable diagnosis?
