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Radiological and radionuclide investigation of malignant otitis externa
N C E Okpala1, Q H Siraj, E Nilssen
1ENT Department, Queen Alexandra Hospital, Portsmouth, UK.
The Journal of Laryngology and Otology
|April 6, 2005
Summary
This study evaluates imaging techniques for malignant otitis externa. SPECT bone imaging, with gallium scintigraphy for follow-up, is recommended for diagnosis and monitoring.
Area of Science:
- Radiology
- Nuclear Medicine
- Otolaryngology
Background:
- Malignant otitis externa (MOE) is a severe infection requiring accurate diagnosis and monitoring.
- Radiological and radionuclide investigations play a crucial role in managing MOE.
- Standardized investigation protocols are needed for effective patient care.
Observation:
- Case series analyzing computerized tomography (CT), magnetic resonance imaging (MRI), and various scintigraphic techniques.
- Evaluated modalities include technetium-99m methylenediphosphonate bone scans, gallium-67 scans, and labeled white blood cell (WBC) scintigraphy.
- Detailed radiological and scintigraphic findings from MOE cases were reviewed.
Findings:
- CT and/or MRI combined with SPECT bone imaging are essential for initial MOE diagnosis.
- Routine SPECT bone imaging, supplemented by gallium scintigraphy, is optimal for follow-up.
- These imaging strategies aid in assessing treatment response and detecting disease recurrence.
Implications:
- Establishes a rational investigation protocol for malignant otitis externa.
- Highlights the importance of advanced imaging in MOE management.
- Improves patient outcomes through timely diagnosis and effective monitoring.