Case 15

20 y/o female no PMH presents with swelling and pain of the right side of the throat radiating to the right ear x 3 days associated w/ difficulty swallowing, given abx 2 days prior with worsening of pain and swelling.

Vitals:

Temp 101.3
Pulse 109
RR 18
BP 123/73
Sat 97% RA

1. We are looking at the left side.  What probe is being used and what structure is labeled A?

2. We are now looking at the affected side.  What is different about this image (A) as compared to the last image?

3. What are B and C?