CTA of neck
Point of care ultrasound may reveal IJ thrombus
Blood Cultures
Diagnostic criteria:
History of oropharynx pain within last 4 wks
Evidence of IJV thrombophlebitis/carotid sheath
Isolation of F. necrophorum from blood
Evidence of metastatic infection in another site (lungs)
Lemierre's syndrome
Q fever
AIDS fever of unknown origin
Tuberculosis
Pertussis
Pneumonia
Diphtheria
Viral pharyngitis