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Paranasal sinus disease with intracranial extension: aspergillosis versus malignancy
E J Sarti1, S M Blaugrund, P T Lin
1Department of Otolaryngology, Lenox Hill Hospital, New York, NY.
Abstract:
Aspergillus is a fungus with world-wide distribution and a common endogenous contaminate of the upper respiratory tract. It has become an increasingly recognized pathogen in the paranasal sinuses. In its pathologic state it presents in one of several forms that may represent a continuum of the disease: allergic, noninvasive, invasive, and fulminant. The progression and prognosis of these disease depends on the location and immunologic status of the patient. This case represents the fourth reported case of a nonimmunologic compromised patient with intracranial extension of aspergillosis. The patient presented with unilateral pansinusitis and radiographic evidence of orbital and anterior cranial fossa invasion. This case illustrates the difficulty of establishing the diagnosis of invasive aspergillosis and differentiating it from neoplastic entities. Radiographs and photomicrographs will be presented to establish this premise.
Insights
Aspergillus fungus can invade sinuses and spread to the brain, even in non-immunocompromised patients. Differentiating invasive aspergillosis from tumors is challenging.
Area of Science:
- Medical Mycology
- Infectious Diseases
- Neurology
Background:
- Aspergillus is a ubiquitous fungus, commonly found in the respiratory tract.
- It is an emerging pathogen affecting paranasal sinuses, with disease presentations ranging from allergic to fulminant.
- Disease progression and prognosis are influenced by anatomical location and patient's immune status.
Observation:
- This report details the fourth case of intracranial aspergillosis in a non-immunocompromised patient.
- The patient exhibited unilateral pansinusitis with radiographic evidence of orbital and anterior cranial fossa invasion.
- Diagnosis of invasive aspergillosis can be difficult, often confused with neoplastic conditions.
Findings:
- The case highlights the challenges in diagnosing invasive aspergillosis, particularly in differentiating it from cancers.
- Radiographic and histopathological evidence are crucial for diagnosis.
- Intracranial extension of fungal sinusitis poses significant diagnostic and therapeutic hurdles.
Implications:
- This case underscores the importance of considering fungal infections in the differential diagnosis of sinonasal masses with intracranial extension.
- Early and accurate diagnosis is critical for appropriate management and improved patient outcomes.
- Further research is needed to improve diagnostic strategies for invasive fungal sinusitis.