A 54-year-old woman presents with a 6-month history of progressive right leg swelling and dull pain that worsens throughout the day but improves with leg elevation and ambulation. She reports a history of right lower extremity deep vein thrombosis 2 years ago following a long international flight, which was treated with anticoagulation for 6 months. On examination, she has 2+ pitting edema of the right leg, reddish-brown discoloration around the medial malleolus, multiple dilated telangiectasias, and prominent varicose veins in the right calf. Vital signs are stable. Which of the following is the most appropriate diagnostic test to confirm the suspected diagnosis?
- A)Ankle-brachial pressure index
- B)D-dimer assay
- C)Duplex ultrasonography of the right lower extremityGABARITO
- D)Computed tomography angiography of the right lower extremity
- E)Magnetic resonance venography
Explicação
Duplex ultrasonography is the gold standard for diagnosing chronic venous insufficiency (CVI). This non-invasive test uses B-mode imaging combined with Doppler assessment to detect venous valve incompetence, reflux, and obstruction. The clinical presentation i... Ver explicação completa e trilha adaptativa →