ARRS 2022 Abstracts

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E1994. Skull Base Lesions: What the Differential Includes
Authors
  1. Christian Wishka; University of California, Irvine
  2. Noel Miner; University of California, Irvine
  3. Christopher Nguyen; Riverside University Health System
  4. Eleanor Chu; University of California, Irvine
  5. Edward Kuoy; University of California, Irvine
Background
Skull base lesions can entail any variety of etiologies. Key imaging features will be reviewed to help discern potential malignant processes from more benign entities.

Educational Goals / Teaching Points
Skull base foramens are conduits for important neurological structures. A fundamental understanding of this anatomy is essential for radiologists in daily practice to be able to assess potential regions of clinical concern and to communicate critical areas of pathology. After reviewing key anatomic sites, various benign and malignant skull base processes will be reviewed with tips on narrowing the differential diagnosis when similar lesions are encountered in practice.

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
The goal of this exhibit is to review key anatomic sites and features particularly important in the decision of surgical approaches and treatment fields, with a case-based review of various skull base pathologies with helpful imaging findings to narrow the differential considerations. Sample cases include encephalocele, esthesioneuroblastoma, juvenile nasopharyngeal angiofibroma, chordoma, chondrosarcoma, craniopharyngioma, meningioma, and squamous cell carcinoma. A quiz review will reinforce key imaging features of various cases.

Conclusion
When encountering even the most complex of skull base lesions, one can provide value-added reports by detailing key sites of anatomic involvement and use imaging clues to help narrow the potential differential diagnoses.