Erythema toxicum neonatorum Erythema toxicum neonatorum Erythema toxicum neonatorum (also known as erythema toxicum, urticaria neonatorum and toxic erythema of the newborn) is a common rash in neonates. It appears in up to half of newborns carried to term, usually between day 2–5 after birth; it does not occur outside the neonatal period. Erythema toxicum is characterized by blotchy red spots on the skin with overlying white or yellow papules or pustules. These lesions may be few or numerous. The eruption typically resolves within first two weeks of life and frequently individual lesions will appear and disappear within minutes or hours. It is
Skin manifestations of sarcoidosis lesions of sarcoidosis accompanied by substantial fibrosis, simulating morphea. Erythrodermic sarcoidosis is a cutaneous condition and very rare form of sarcoidosis. Hypopigmented sarcoidosis is a cutaneous condition characterized by areas of hypopigmented skin. It is usually diagnosed in darkly pigmented races and may be the earliest sign of sarcoidosis. Papular sarcoid is a cutaneous condition characterized by papules, which are the most common morphology of cutaneous sarcoidosis. Ichthyosiform sarcoidosis is a cutaneous condition resembling ichthyosis vulgaris or acquired ichthyosis, with fine scaling usually on the distal extremities, by caused by sarcoidosis. Subcutaneous sarcoidosis (also known as "Darier–Roussy disease" and "Darier-Roussy