This patient has areas of depigmentation around the mouth, the upper limb, legs and trunk. He has vilitigo.
Vitiligo affects 1% of the population. Equal between males and females, although more females present to the skin clinic. Family history in 1/3 of patients.
They have Koebner's phenomenon - lesion appearing on the site of lesion.
When you see a patient like this, look for other features of autoimmune
Thyroid disorder - Hashimoto's thyroiditis, Graves' disease
Pallor - Pernicious anaemia
Pigmentation of buccal, skin crease, hypotension - Addison's disease
Tetany, cramps, paraesthesia, Chvostek's and Trousseau's sign - Idiopathic hypoparathyroidism
Fundus - diabetes mellitus
Lungs (fine crepts) - Fibrosing alveolitis
Jaundice - Chronic active hepatitis
Excoriation marks, xanthalesma, pigmentation - primary biliary cirrhosis
rash, arthritis, prox weakness - SLE, RA, dermatomyositis, polymyositis
Look out for polyglandular autoimmune disease
What are the 2 types ?