Anatomical variants and pathologies of the vermix

Swati Deshmukh, Franco Verde, Pamela T. Johnson, Elliot K. Fishman, Katarzyna J. MacUra*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


The appendix may demonstrate a perplexing range of normal and abnormal appearances on imaging exams. Familiarity with the anatomy and anatomical variants of the appendix is helpful in identifying the appendix on ultrasound, computed tomography, and magnetic resonance imaging. Knowledge of the variety of pathologies afflicting the appendix and of the spectrum of imaging findings may be particularly useful to the emergency radiologist for accurate diagnosis and appropriate guidance regarding clinical and surgical management. In this pictorial essay, we review appendiceal embryology, anatomical variants such as Amyand hernias, and pathologies from appendicitis to carcinoid, mucinous, and nonmucinous epithelial neoplasms.

Original languageEnglish (US)
Pages (from-to)543-552
Number of pages10
JournalEmergency Radiology
Issue number5
StatePublished - Oct 1 2014


  • Appendiceal neoplasm
  • Appendicitis
  • Appendix
  • Appendix embryology

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Emergency Medicine


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