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Erythema contusiforme, when a subcutaneous hemorrhage (bleeding under the skin) occurs with an erythema nodosum lesion, causing the lesion to look like a contusion (bruise) Erythema nodosum migrans (also known as subacute nodular migratory panniculitis ), a rare form of chronic erythema nodosum characterized by asymmetrical nodules that are ...
The most common lesions are erythema nodosum, plaques, maculopapular eruptions, subcutaneous nodules, and lupus pernio. [33] Treatment is not required, since the lesions usually resolve spontaneously in 2–4 weeks. Although it may be disfiguring, cutaneous sarcoidosis rarely causes major problems.
Erythema nodosum is the most common type of skin problem, occurring in around 8% of people with Crohn's disease, producing raised, tender red nodules usually appearing on the shins. [55] [68] [69] Erythema nodosum is due to inflammation of the underlying subcutaneous tissue, and is characterized by septal panniculitis. [68]
There are established epigenetic and environmental risk factors for RA. [64] [3] Smoking is an established risk factor for RA in Caucasian populations, increasing the risk three times compared to non-smokers, particularly in men, heavy smokers, and those who are rheumatoid factor positive. [65] Modest alcohol consumption may be protective. [66]
The classic triad of coccidioidomycosis known as "desert rheumatism" includes the combination of fever, joint pains, and erythema nodosum. [4] [14] A minority (3–5%) of infected individuals do not recover from the initial acute infection and develop a chronic infection.
The last revision of 2015 suggested variable diagnostic criteria in low-risk and high-risk populations to avoid overdiagnosis in the first category and underdiagnosis in the last one. [34] Low-risk populations were defined as those with acute rheumatic fever annual incidence ≤2 per 100 000 school-aged children or all-age rheumatic heart ...
Löfgren syndrome includes some of the same symptoms as traditional sarcoidosis, and presents with erythema nodosum (especially of the lower extremities), bilateral arthritis of the ankle joints, and hilar lymphadenopathy. (Note: Other symptoms are classically not present in Löfgren syndrome.)
[2] [1] Risk factors include HIV/AIDS and systemic lupus erythematosus. [1] The diagnosis of Stevens–Johnson syndrome is based on involvement of less than 10% of the skin. [2] It is known as TEN when more than 30% of the skin is involved and considered an intermediate form when 10–30% is involved. [3]