paraphrase and avoid AI patterns keeping with the medicalt terms: Mr. Johnson is a 58-year-old male presenting with a 5-day history of progressive swelling and a pressure-like sensation in the right popliteal fossa. The discomfort began gradually without identifiable trauma and has remained constant, with a severity of 4 out of 10. He describes the mass as cyst-like, worsening with prolonged standing or full knee flexion, and mildly relieved by rest and elevation. He denies erythema, warmth, fevers, chills, or radiation of discomfort. He reports no history of DVT, and has experienced a similar episode several years ago that resolved spontaneously. He denies difficulty walking but notes a feeling of tightness that limits full flexion