Adult-onset asthma and severe periocular xanthogranuloma: a case report.

A 55-year-old obese Mexican American male with a 3-year history of adult-onset asthma presented with a 10-year history of disfiguring eyelid edema. A biopsy revealed lymphoid aggregates consisting of reactive lymphoid follicles and Touton giant cells. He was diagnosed with adult-onset asthma associated with periocular xanthogranuloma and treated with systemic steroids. This case highlights an uncommon disease in its most severe presentation.