Familial EN is reported, with affected family members showing a common haplotype. The incidence has decreased in the antibiotic era. Laboratory tests show no specific abnormalities except those related to an underlying disease. Familial EN is reported, with affected family members showing a common haplotype. The incidence has decreased in the antibiotic era.
EN is seen more frequently in erythema nodosum, erathema, nodosa Clinical manifestations and course.
Symptoms may disappear in a few weeks or persist for 2 years, but The eruptive phase begins with flulike symptoms of fever and generalized aching. Similar lesions may appear on the extensor aspects of the forearms, thighs, and trunk. The border is poorly defined, Pathogenesis and etiology.