
A US laboratory study found that 29.5% of patients with Lyme antibodies were seropositive for at least 1 other tick-borne pathogen.
History of present illness. A man in his 50s presents to urgent care for 2 days of right facial swelling and pain. He denies any fever but does state he has a bad taste in his mouth.
Vital signs and physical examination. Vital signs are normal except for mild tachycardia. Examination is notable for facial swelling on the right. Dentition looks good.
Initial diagnostic testing
Labs: WBC = 14, BMP normal, CRP = 20
Imaging: CT scan is done. Two cuts are shown below.






