“…The pathogenesis of LD remains unclear, but it has been attributed to several etiologies (Table 1). LD has been correlated with a malfunction in opsonization of yeast and S. aureus and is possibly associated with Omenn syndrome, other forms of SCID, complement C3 and C5 deficiency, hypogammaglobulinemia and hypergammaglobulinemia E. 3,8,12,14,18,26,27 Other studies have also suggested an association with familial atopy, 14,18 celiac disease, 28 Langerhans cell histiocytosis, 29 metabolic acidosis, 11 and several nutritional factors such as biotin deficiency. 2,4,6,23 LD may arise from a deficiency in opsonization of yeast and S. aureus through a deficit of complement factors.…”