Stages of submasseteric space infection: a pictorial review

Authors

  • Husam Wassati Department of Radiology, King’s College Hospital NHS Foundation Trust, Princess Royal University Hospital, Orpington BR6 8ND
  • Vincent Lam
  • Amy Barnes Department of Radiology, University Hospitals of Leicester NHS Trust, Leicester Royal Infirmary, Infirmary Square, Leicester, LE1 5WW, UK.
  • Gibran Timothy Yusuf Department of Radiology, King’s College Hospital NHS Foundation Trust, Princess Royal University Hospital, Orpington BR6 8ND
  • Ram Vaidhyanath Department of Radiology, University Hospitals of Leicester NHS Trust, Leicester Royal Infirmary, Infirmary Square, Leicester, LE1 5WW, UK.

Keywords:

Submasseteric space, odontogenic infection, pericoronitis, MRI, CT, phlegmon

Abstract

The submasseteric space is described as merely a potential closed place between the mandible and the masseter muscle. However, in situations where infective organisms find their way to this space, it would provide a protected environment for the development of occult infection. Infection within the submasseteric space is rare, often chronic and commonly misdiagnosed or missed. Recognising this potential space infection which is commonly dental in origin and identifying its important clinical and radiological findings, are essential for an appropriate and timely diagnosis and management that usually requires surgical drainage to alleviate the symptoms.

Our objective in this article is to describe the anatomy of the submasseteric space and present a pictorial review describing the clinical and radiological features of the infection in the acute, subacute and chronic stages.

Author Biographies

Husam Wassati , Department of Radiology, King’s College Hospital NHS Foundation Trust, Princess Royal University Hospital, Orpington BR6 8ND

Consultant Head & Neck and Neuroradiologist

Vincent Lam

Department of Radiology, University Hospitals of Leicester NHS Trust, Leicester Royal Infirmary, Infirmary Square, Leicester, LE1 5WW, UK.

Downloads

Published

20-11-2025

Issue

Section

Pictorial Essays