- Malignancy: Erythema annulare centrifugum can be considered an uncommon but genuine paraneoplastic sign. Bronchial, prostate, nasopharyngeal, ovarian, rectal and hepatic tumors, lymphoma and leukemia are examples.
- Hematologic conditions: Polycythemia vera, myelodysplastic syndrome, hypereosinophilic syndrome, cryoglobulinemia.
- Endocrinologic conditions: Hyperthyroidism, Hashimoto thydroiditis, autoimmune progesterone dermatitis.
- Other: Hepatic disease, after biliary duct surgery.
- Food allergies.
- Drug reactions.
- Vesiculation may be rarely seen.
- Lymphadenopathy may be present in cases of EAC associated with Hodgkin or non-Hodgkin lymphoma, tuberculosis, or autoimmune processes.
- The lesions tend to appear on the body and proximal parts of the extremities.The lesions are pink to red with central clear areas. Occasionally, residual hyperpigmentation of dull red, brown, or violet is present. A case of EAC associated with hyperbilirubinemia and jaundice secondary to choledocholithiasis has been reported.
- Lyme antibody titer is needed to exclude erythema migrans.
- An antinuclear antibody (ANA) test should be performed in the appropriate clinical setting. Systemic lupus erythematosus is in the differential diagnosis of EAC, and Sj
According to researchers from the University of Pennsylvania, iron found in dark leafy greens may help boost the brains of children. For the study, a team of scientists measured iron levels in the brain of 1,500 children and young adults whose age was between 8 and 24...
A new study, published in Environmental Health Perspectives, suggests that exposure to ultrafine particles (UFP) of air pollution can be a trigger for heart attacks. To investigate the link between UFP and nonfatal heart attacks, the team of researchers analyzed data...
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