A 45-year-old woman has breast cancer. Her left arm has symptoms of lymphatic system insufficiency - limb edema, lymph node enlargement. What form of lymphatic circulation insufficiency is it?

Answer options

1. Mechanic insufficiency
2. Resorption insufficiency
3. -
4. Dynamic insufficiency
5. Combined insufficiency

Explanation

Mechanic insufficiency: This condition occurs when lymph flow is hindered by a mechanical factor. E.g. occlusion of lymphatics by obstructive lymphadenitis, thrombosis of the lymphatics (e.g. during cancer metastasis), filariasis.