{Reference Type}: Letter {Title}: Stupendous skin nodules: Necrobiotic xanthogranuloma with IgA-λ and IgG-κ monoclonal gammopathy. {Author}: Liu Z;Cao X;Wan C; {Journal}: J Dermatol {Volume}: 50 {Issue}: 2 {Year}: 02 2023 {Factor}: 3.468 {DOI}: 10.1111/1346-8138.16622 {Abstract}: