Serum lysozyme in patients with localized and generalized granuloma annulare.

Serum lysozyme (Muramidase) levels in patients with localized and generalized granuloma annulare were measured by a turbidometric method. More lysozyme is present in the serum samples of patients with generalized granuloma annulare than patients with the localized form or normal controls. The mean level of patients with generalized disease was 9.27 mg/L compared with 5.96 mg/L for patients with localized disease and 6.8 mg/L for controls.