American Urological Association - Eosinophilic Cystitis
- Characterized by inflammatory infiltrates rich in eosinophils.
- Occurs in patients of wide age range and is more common in females.
- Three clinical settings:
- Localized and non-specific reaction to bladder injury, such as transurethral resection procedure or invasive carcinoma.
- Less often, in setting of allergy in which patients may also have asthma, allergic gastroenteritis or peripheral blood eosinophilia.
- Rarely in parasitic infestation.
- Inflammatory infiltrates composed predominantly of eosinophils in lamina propria &/or muscularis propria (image A) & (image B).