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Erythema nodosum presents with tender bilateral erythematous subcutaneous nodules 3–20 cm in diameter erupting over one to several weeks. They are accompanied by fever and joint pain. In 50% the ankle is swollen and painful for up to several weeks. The knees and other joints can also be affected [8].
Erythema nodosum pathology. Author: Assoc Prof Patrick Emanuel, Dermatopathologist, Auckland, New Zealand. January 2015. Erythema nodosum is the most common form of panniculitis. It typically presents as tender, erythematous, subcutaneous nodules and plaques, arising in crops most commonly on the pretibial areas bilaterally.
If you have any concerns with your skin or its treatment, see a dermatologist for advice. Erythema nodosum images. Authoritative facts about the skin from DermNet New Zealand.
Lupus pernio is one of the more common forms of cutaneous sarcoidosis. Sarcoidosis is a multisystem disorder characterised histologically by granulomas (a specific type of inflammation). Lupus pernio presents as bluish-red or violaceous nodules and plaques over the nose, cheeks and ears. The name is derived from the Latin name for 'wolf' (lupus ...
Lyme disease is an infection caused by Borrelia, a type of bacteria called a spirochaete. Lyme disease can affect any part of the body, most commonly the skin, central nervous system, joints, heart, and rarely the eyes and liver. Lyme disease is common in parts of the United States (particularly in Massachusetts) and Europe but is reported from ...
Erythema gyratum repens presents with concentric erythematous rings that have a distinctive wood-grain appearance. The rings progress in waves, with the leading edge migrating about 1 cm/day. A trailing or collarette scale may be seen. Erythema gyratum repens is very itchy. The annular plaques most often involve the limbs and trunk [1].
Most cases of toxic erythema of the newborn begin in the first few days after birth, although onset can be as late as two weeks of age. Toxic erythema of the newborn is evident as various combinations of erythematous macules (flat red patches) papules (small bumps) and pustules. The eruption typically waxes and wanes over several days and it is ...
Annular erythema may occur at any time throughout life, from infancy to old age. The eruption usually begins as a small raised pink-red spot that slowly enlarges and forms a ring shape while the central area flattens and clears. There may be an inner rim of scale. The rings enlarge at a rate of about 2–5 mm/day until they reach a diameter of ...
1 de sept. de 2021 · Erythema multiforme is an immune-mediated, typically self-limiting, mucocutaneous condition characterised by ‘target’ lesions. Significant mucosal involvement distinguishes erythema multiforme major from multiforme minor. Episodes can be isolated, recurrent, or persistent. In most cases, erythema multiforme is precipitated by herpes simplex ...
Erythema infectiosum is caused by an erythrovirus, EVB19 or Parvovirus B19. It is a single-stranded DNA virus that targets red cells in the bone marrow. It spreads via respiratory droplets, and has an incubation period of 7–10 days.
