A 79-year-old woman is noticed in the nursing home to have difficulty using her right leg over the past several days. She does not complain of any pain. The leg’s appearance has not changed. She has...

A 79-year-old woman is noticed in the nursing home to have difficulty using her right leg over the past several days. She does not complain of any pain. The leg’s appearance has not changed. She has diffuse weakness affecting both flexors and extensors in both the thigh and the leg, as well as the foot. What is the most likely diagnosis?

A. Left ACA occlusion

B. Pelvic mass impinging on the right sciatic and femoral nerves

C. Left MCA occlusion

D. ACom occlusion

E. Left deep femoral venous thrombosis