3rd April 2024

A 68 year old male presents to the clinic for review of his left lower limb swelling.

A 68 year old male presents to the clinic for review of his left lower limb swelling. This is the 2nd time it has occurred with the 1st time subsiding after a year. On questioning, he states he has no significant weight loss but does complain of being tired and often sweats at night. Past medical history includes a previous myocardial infarction two years ago, treated with stenting, and a diagnosis of urothelial carcinoma five years ago, which was treated with a partial cystectomy. Through which mechanism does the oedema occur in this patient?

Select the SINGLE most appropriate option from the list below. Select ONE option only.