What causes Wells syndrome (eosinophilic cellulitis)?

Updated: Apr 17, 2019
  • Author: Robert A Schwartz, MD, MPH; Chief Editor: Dirk M Elston, MD  more...
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Answer

The etiology of Wells syndrome (eosinophilic cellulitis) is unknown. Wells syndrome may be due to drugs, various infections, and, possibly, nonhematologic malignancies as trigger events. [12, 13] Medications linked include antibiotics, anticholinergic agents, anaesthetics, nonsteroidal anti-inflammatory agents, thyroid medications, chemotherapeutic agents, thiomersal-containing vaccinations, antitumor necrosis factor agents, and thiazide diuretics. [14] Vaccines implicated include hepatitis B vaccine, influenza vaccine, tetanus vaccine, tetanus-diphtheria vaccine, and triple-antigen vaccine. [15, 16]


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