vitiligo . white pigment autoimmune disease with pigment loss.

abdominal autoimmune body brown cells condition cosmetic depigmentation dermatology dermis diagram disease disorder disordered epidermis fatigue genetic health human hypodermis illness illustration inflammation labeled medicine melanin melanocyte melanoma muscle pathogen pigment pigmentation problem rays reaction scheme skin spots stess stigmatized sun sunburn susceptibility symptom symptoms tan tissue vector vitiligo white