ARRS 2022 Abstracts

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E1861. Cervical Lymphadenopathy: A Trainee's Guide to Categorization and Differential Diagnosis
Authors
  1. Vishesh Jain; Santa Clara Valley Medical Center
Background
Cervical lymphadenopathy is a key factor in the staging, prognosis, and management of not only head and neck cancers but other malignancies. Furthermore, the differential diagnosis of unexplained lymphadenopathy includes a variety of inflammatory and infectious etiologies. This presentation will discuss cervical lymph node anatomy, categorization, and morphologic features, which can assist a radiologist in localizing and identifying the primary pathology.

Educational Goals / Teaching Points
The goals of this exhibit are to improve fluency with the main radiological cervical lymph node levels via a simple anatomic foundation in three bony structures and three soft tissue structures; use typical drainage patterns, supplemented by additional lymph node groups and named cervical lymph nodes, to improve localization of pathology; and navigate the differential diagnosis for cervical lymphadenopathy using morphologic features.

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
Anatomic fundamentals will be reviewed to gain familiarity with cervical lymph node levels, groups, and drainage patterns. Morphologic features concerning for malignancy versus other etiologies will be discussed using case-based didactics. CT, PET, MRI, and ultrasound will be used in this presentation.

Conclusion
Understanding of cervical lymphadenopathy grounded in cervical anatomy improves the radiologist’s ability to accurately localize and diagnose a variety of disease entities. For oncologic indications, cervical imaging plays a key role in staging and prognosis as well as management for malignancies in the neck and beyond.