A 25-year-old woman presents to the emergency room complaining of redness and pain in her right foot up to the level of the midcalf. She reports that her right leg has been swollen for at least 15 years, but her left leg has been normal. On physical examination she has a temperature of 39°C (102.2°F). The left leg is normal. The right leg is not tender, but it is swollen from the inguinal ligament down and there is an obvious cellulitis of the right foot. The patient’s underlying problem is
a. Popliteal entrapment syndrome
b. Acute arterial insufficiency
c. Primary lymphedema
d. Deep venous thrombosis
e. None of the above
Answer
c. Primary lymphedema