<unk>  is most frequently a disease of older age that occurs in the context of nursing homes, hospitals, and active cancer. It is associated with a 30-day mortality rate of about 6%, with PE being the cause of most of these deaths. Proximal<unk>  is frequently associated with PE, unlike distal<unk> , which is rarely if ever associated with PE. Around 56% of those with proximal<unk>  also have PE, although a chest CT is not needed simply because of the presence of<unk> . If proximal<unk>  is left untreated, in the following 3 months approximately half of people will experience symptomatic PE. Another frequent complication of proximal<unk> , and the most frequent chronic complication, is post-thrombotic syndrome, where individuals have chronic venous symptoms. Symptoms can include pain, itching, swelling, paresthesia, a sensation of heaviness, and in severe cases, leg ulcers. After proximal<unk> , an estimated 20–50% of people develop the syndrome, with 5–10% experiencing severe symptoms. Post-thrombotic syndrome can also be a complication of distal<unk> , though to a lesser extent than with proximal<unk> . In the 10 years following an initial VTE, about 30% of people will have a recurrence. VTE recurrence in those with prior<unk>  is more likely to recur as<unk>  than PE. Cancer and unprovoked<unk>  are strong risk factors for recurrence. After initial proximal unprovoked<unk>  with and without PE, 16–17% of people will have recurrent VTE in the 2 years after they complete their course of anticoagulants. VTE recurrence is less common in distal<unk>  than proximal<unk> . In upper extremity<unk> , annual VTE recurrence is about 2–4%. After surgery, a provoked proximal<unk>  or PE has an annual recurrence rate of only 0.7%.
Deep vein thrombosis
Hematoma
Varicose veins
Cellulitis
Superficial vein thrombosis
Lymphedema
Venous thrombosis
Baker's cyst