CD4 and vasculitis: Mixed lobular and septal lymphocytic panniculitis; lymphocytic infiltration with lymphoid follicles; vasculitis; vacuolar alteration with a smudge appearance along the dermoepidermal junction; thickened basement membrane; mixed population of B cells-CD20+; T cells -CD3+, CD4+, and CD8– and histocytes -CD68+; polyclonal rearrangement of IgH, CDR2, CDR3, and TCR-gamma