ARRS 2022 Abstracts

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E1503. Common Infectious Processes of the Head and Neck Made Ludicrously Simple
Authors
  1. Gaurav Rana; John H Stroger Hospital of Cook County
  2. Haziq Zahir; John H Stroger Hospital of Cook County
  3. Yekaterina Kucerova; John H Stroger Hospital of Cook County
  4. Edwin Wang; John H Stroger Hospital of Cook County
  5. Akinyemi Akintayo; John H Stroger Hospital of Cook County
  6. Corrine Atty; John H Stroger Hospital of Cook County
  7. Alexander Ree; John H Stroger Hospital of Cook County
Background
The identification of infectious processes in the head and neck region is a vital skill for any general or neuro-specialized radiologist. Although many of the infectious processes can be considered relatively benign in terms of their pathophysiology and prognosis, the relative proximity to other important structures, such as the airway, cavernous sinus, and intracranial region, necessitates vigilance from the reading physician in all cases.

Educational Goals / Teaching Points
This review focuses on the spectrum of various common infectious processes which can occur in the head and neck, focusing on the most salient and up-to-date radiological information on each of the disease states, including their most common or characteristic locations, as well as their clinical presentations and relevant treatment options. The intended audience includes radiology residents, those who are preparing for the ABR qualifying and certifying exam, general radiologists, as well as providing refresher information for neuroradiology fellows and attendings.

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
Each of the reviewed pathologies has unique etiology, pathophysiology, clinical history, and imaging findings, which can be a challenge to simultaneously evaluate, especially in an emergent setting. The reviewed pathologies include the following: tonsillitis/pharyngitis, tonsillar abscess, peritonsillar abscess, mastoiditis/otitis media, otitis externa, Ludwig's angina, Lemierre's disease, periapical abscess, mandibular osteomyelitis, retropharyngeal abscess, parotitis/sialadenitis, discitis, periorbital cellulitis, dacrocystitis, fungal sinusitis, lymphadenopathy, longus coli tendonitis, orbital pseudotumor, infected Killian–Jamieson diverticulum, 4th branchial cleft infection, infected thyroglossal duct cyst, and TB spondylitis.

Conclusion
The review of the material pertaining to this topic is one centerpiece of the basic knowledge base needed in a general radiologist. Infectious processes can rapidly transform a benign appearing situation into life-threatening emergency needing the attention of multiple physicians. It is in the best interest of the radiologist to have a proper understanding of the mentioned pathologies and their most vital radiologic characteristics.