Chronic dermatitis is characterized by thick, red patches covered with silvery-white, candle-like scales, due to excessive skin cell proliferation under the influence of the immune system.
This rare keratinization disorder manifests as red follicular papules, patches of bright red skin resembling "islands" of healthy skin interspersed, and causes hyperkeratosis of the palms and soles.
A less common skin disease group, characterized by thin, slightly scaly erythematous patches that progress slowly and are benign, but require regular monitoring to differentiate them from malignant skin conditions.
This scaly papular dermatitis can have an acute course with vesicles and hemorrhages (PLEVA) or a chronic course with persistent, flat, pinkish-brown papules.
Pityriasis rosea starts with a herald patch, then a Christmas-tree rash of scaly spots. Learn about causes, diagnosis and NB-UVB treatment at Haute-Derma.