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[MR imaging in paranasal and intracranial aspergillosis]
K Shirouzu1, K Hasuo, K Yasumori
1Department of Radiology, Faculty of Medicine, Kyushu University.
Abstract:
The MR findings in three patients with paranasal and intracranial aspergillosis were analyzed. Two patients had sphenoid sinus aspergillosis with mucocele, and one had aspergillosis in the maxillary sinus and pachymeningitis in the posterior fossa. In all patients with aspergillosis of the paranasal sinuses, a markedly hypointense area was present within the lesion on T2-weighted images. In the patient with pachymeningitis, contrast-enhanced MR images clearly demonstrated the extent of the lesion.
Insights
Magnetic resonance imaging (MRI) revealed a hypointense area on T2-weighted images in patients with paranasal sinus aspergillosis. Contrast-enhanced MRI effectively showed lesion extent in a case of intracranial aspergillosis with pachymeningitis.
Area of Science:
- Radiology
- Mycology
- Neurology
Context:
- Aspergillosis, a fungal infection, can affect both paranasal sinuses and intracranial structures.
- Accurate diagnosis and assessment of disease extent are crucial for effective treatment.
Purpose:
- To analyze and describe the magnetic resonance (MR) imaging findings in patients with paranasal and intracranial aspergillosis.
- To identify characteristic MR features of sinonasal and intracranial fungal infections.
Summary:
- MR imaging analysis of three patients with aspergillosis.
- Findings included sphenoid sinus aspergillosis with mucocele and maxillary sinus aspergillosis with pachymeningitis.
- A consistent finding was a markedly hypointense area on T2-weighted images within the lesions of paranasal sinus aspergillosis.
Impact:
- Highlights the utility of T2-weighted and contrast-enhanced MRI in diagnosing and evaluating the extent of aspergillosis.
- Contributes to the understanding of imaging characteristics for fungal infections in the sinonasal and intracranial regions.