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Uncommon intracranial abscesses
1Department of Surgery, University of Benin Teaching Hospital, Benin, Nigeria.
Background:
Intracranial abscess, though uncommon, have relatively higher occurrence in low socio-economic settings where previous antibiotic abuse and lack modern culture techniques makes isolation of organisms difficult. Diagnosis and treatment are further delayed by a poor referral system and low index for suspicion. Tuberculoma, cannabis abuse, ventriculo-peritoneal shunt catheters and cancer therapy are presented here as unusual causes of intracranial abscesses.
Aims & Objectives:
To highlight less commonly encountered causes of an uncommon, but dreaded, neurosurgical condition, their diagnosis and treatment approaches.
Case Reports:
Five patients who had surgical evacuation of intracranial abscesses not due to pathology from the more familiar spread from sinusitis, mastoid, middle ear, post-meningitic or post -traumatic aetiology are presented. Contrast computerised tomography (CT) brain scan was essential in clinching the diagnosis and determining the management options.
Conclusions:
Persistent headaches or features of intracranial involvement (in patients undergoing treatment for other conditions) should always warrant CT of the brain. However, there are several differential diagnoses of ring-enhancing lesions on CT which have to be excluded when considering an abscess.
Insights
Uncommon intracranial abscesses can arise from unusual causes like tuberculoma or cannabis abuse, often seen in low-resource settings. Early brain CT scans are crucial for diagnosis and management of these complex neurosurgical conditions.
Area of Science:
- Neurosurgery
- Infectious Diseases
- Radiology
Background:
- Intracranial abscesses are uncommon but present challenges in low socio-economic settings due to antibiotic misuse and limited diagnostic facilities.
- Delayed diagnosis and treatment are exacerbated by poor referral systems and low clinical suspicion.
- Unusual causes include tuberculoma, cannabis abuse, ventriculo-peritoneal shunt complications, and cancer therapy.
Purpose of the Study:
- To identify and discuss less common etiologies of intracranial abscesses.
- To outline diagnostic and therapeutic strategies for these rare neurosurgical conditions.
Main Methods:
- Case series presenting five patients with intracranial abscesses from uncommon causes.
- Contrast-enhanced computed tomography (CT) brain scans were utilized for diagnosis and treatment planning.
Main Results:
- Five patients underwent surgical evacuation of intracranial abscesses.
- CT brain scans were instrumental in diagnosing the abscesses and guiding management.
Conclusions:
- Persistent headaches or neurological symptoms in patients with other conditions warrant a brain CT scan.
- Differential diagnoses for ring-enhancing lesions on CT, including abscesses, must be considered and excluded.
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