Are CT and MRI Scanning Reliable in Diagnosing Otogenic Skull Base Osteomyelitis in Non-Immunocompromised Elderly Patients? A Case Series and Review of the Literature

Rebecca SM Lim, Chi kee Leslie Shaw
2017 International Journal of Radiology & Radiation Therapy  
Otogenic skull base osteomyelitis (SBO) is a life-threatening condition that requires timely diagnosis and treatment. It is most commonly seen in the elderly diabetic or immunocompromised patients. The role of nuclear medicine imaging in diagnosis of SBO remains controversial. Methods: This paper presents two unusual cases of otogenic SBO in elderly nonimmunocompromised patients. A review of the relevant literature from 1986 to 2016 was performed via the Medline database using search terms
more » ... g search terms 'skull base osteomyelitis', 'otogenic', 'malignant otitis externa' and 'imaging'. Results: Both patients presented with chronic mild otalgia and ear discharge, and were subsequently diagnosed with otogenic SBO based on nuclear medicine imaging. Nuclear medicine imaging was essential for diagnosis and localization of SBO in both patients as CT and MRI either failed to detect or accurately localize SBO. Conclusion: SBO can occur in non-immunocompromised elderly patients with normal CT and MRI scans. Nuclear medicine imaging is essential in the diagnostic workup.
doi:10.15406/ijrrt.2017.03.00075 fatcat:r6vxbjrrdbbj7agxp45wyjt3uq