Lymph nodes can be infiltrated by polymorphonuclear cells a condition called lymphadenitis or lymph nodes can be infiltrated by macrophages laden with metabolites as in lipid storage diseases.

• 淋巴结可由多形核细胞浸润，称淋巴腺病，或由充满代谢物的巨噬细胞浸润，像脂贮积病。