A 68-year-old woman with no past medical history presents to the Emergency Department with acute onset of left leg pain, swelling, and cyanosis for 2 hours. There is no history of trauma.
Vital signs:
Temperature 36.8°C
Heart rate 102/min irregular
Blood pressure 156/94 mmHg
Respiratory rate 18/min
O2 saturation 98% on room air
Examination:
• The left lower limb appears dark blue and swollen compared to the right
• Normal pulses in the left leg
• The left leg is cold with severe pain
• Oedema extending to the thigh
What is the diagnosis?
A
Cellulitis
B
Acute arterial limb ischemia
C
Lymphedema
D
Necrotizing fascitis
E
Phlegmasia cerulea dolens