Stage 0 lymphedema is characterized by which finding?

• A. No clinical signs of edema but reduced lymph transport capacity is present
• B. Pitting edema that is reversible with elevation
• C. Nonpitting edema with fibrotic skin changes
• D. Severe nonpitting edema with atrophic changes

Answer: (A)

Stage 0 lymphedema is the latent phase where the lymphatic system is not functioning at full capacity, but there are no visible signs of swelling yet. The key idea is that lymph transport capacity is reduced even though the tissues don’t yet show edema. This means a person might be at risk of developing swelling later if the lymphatic load increases, but nothing is swollen on exam right now.

That’s why the description “no clinical signs of edema but reduced lymph transport capacity is present” best fits Stage 0. By contrast, swelling that appears and is pitting and reversible with elevation points to early edema, but not a latent stage. Nonpitting edema with fibrotic skin changes indicates a more advanced stage with tissue remodeling, and severe nonpitting edema with atrophic changes describes a late, complicated stage.