Case 1: Hyaline fat necrosis; Lymphocytic infiltration in lobules and stroma; CD3-positive T-lymphocytes; CD20-positive B-lymphocytes. Six months later: perivascular and periductal non-specific lymphocytic infiltrate Follicular hyperplasia in lymph nodes. Case 2: Lymphoplasmacytic perineural infiltration;  lymphocytic vasculitis in the deep dermis; hyalinization and sclerosis of adipose tissue and deep dermal mucin deposition. Here, MUC5AC is linked to vasculitis, lymphocytic, nodular.