A 61-year-old woman with a 10-year history of rheumatoid arthritis presents with painful swelling at

A 61-year-old woman with a 10-year history of rheumatoid arthritis presents with painful swelling at the back of the knee that is visible on physical examination only when the patient is standing with the knee extended. Which of the following is the most likely diagnosis? a. Anserine bursitis b. Baker cyst c. Deep venous thrombosis d. Prepatellar bursitise. Infrapatellar bursitis