CLT Lymphedema Pathology & Staging 3

Question 1

Acute inflammatory episodes in lymphedema limbs caused by bacterial skin infections are called what?

Accepted Answer

Cellulitis/erysipelas flares

Answer

Lymphangiosarcoma

Answer

Deep vein thrombosis

Answer

Thrombophlebitis

Question 2

Stewart-Treves syndrome is a rare but serious complication of chronic lymphedema that involves development of what?

Accepted Answer

Lymphangiosarcoma (malignant vascular tumor)

Answer

Severe recurrent cellulitis

Answer

Deep vein thrombosis

Answer

Peripheral neuropathy

Question 3

Volume measurement using water displacement (volumetry) is considered the gold standard for tracking limb lymphedema. What is the typical diagnostic threshold for upper extremity lymphedema?

Accepted Answer

>200 mL difference between limbs

Answer

>50 mL difference between limbs

Answer

>500 mL difference between limbs

Answer

>1000 mL difference between limbs

Question 4

Bioimpedance spectroscopy (BIS) is used in lymphedema assessment to measure what?

Accepted Answer

Extracellular fluid accumulation in the limb

Answer

Protein concentration in interstitial fluid

Answer

Lymph node count

Answer

Skin fibrosis severity

Question 5

Which term describes the safety factor that prevents edema from forming despite minor increases in capillary filtration?

Accepted Answer

Lymphatic reserve capacity (safety valve function)

Answer

Plasma oncotic pressure reserve

Answer

Venous buffer mechanism

Answer

Interstitial compliance

Question 6

Phlebolymphedema is best described as what condition?

Accepted Answer

Combined edema resulting from primary venous insufficiency that secondarily overwhelms lymphatic capacity

Answer

Pure lymphedema from lymph node removal

Answer

Lymphedema caused by deep vein thrombosis only

Answer

A form of lipedema affecting the veins