I nodded, gravely. I was recently privileged to attend a symposium on eosinophils. I realize that this sounds odd. And it was odd, mainly because I’m not an eosinophil expert. Still, they were in need of someone who knew something about eosinophilic granulomatosis with polyangiitis, so I managed to sneak in through the back door….
Recurrent cutaneous eosinophilic vasculitis (RCEV) is a rare autoimmune condition characterized histologically by necrotizing small vessel vasculitis of the skin and almost exclusive eosinophilic infiltration without any systemic involvement.1 Frequently, there is associated peripheral eosinophilia, and a prolonged course of glucocorticoids is required for treatment. To date, only a few RCEV cases have been reported….
CHICAGO—High eosinophil counts that can’t be explained should concern rheumatologists and spark attempts to identify what’s happening, an expert said at the ACR State-of-the-Art Clinical Symposium in April. “Eosinophil counts over 1,500 (per microliter) should provoke worry,” said Bruce Bochner, MD, professor of medicine in allergy and immunology at Northwestern University Feinberg School of Medicine…
Eosinophilia is usually defined as an eosinophil count of more than 500/microL in peripheral blood.1 An eosinophil count of more than 1,500 is referred to as hypereosinophilia (HE); hypereosinophilic syndrome (HES) is defined as HE associated with organ dysfunction attributable to eosinophilia.2 Eosinophilia can occur due to infectious, malignancy, autoimmune or allergic etiologies. However, a…
Clinical Vignette A 45-year-old woman with long-standing asthma and chronic sinusitis has new-onset peripheral neuropathy, arthralgias, fatigue, progressive dyspnea and a nonproductive cough. She has never smoked and has no environmental exposures. Her medications include an albuterol metered-dose inhaler (which she uses daily); an inhaled corticosteroid, montelukast; and ibuprofen (which she takes occasionally). She is…