Isolated sphenoid sinus fungal mucoceles: A rare entity with a high propensity for causing neurological complications.

Surgical neurology international Pub Date : 2024-11-29 eCollection Date: 2024-01-01 DOI:10.25259/SNI_849_2024
Marwa Ibrahim, Marwan Alqunaee, Mustafa Najibullah, Zafdam Shabbir, Waleed A Azab
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Abstract

Background: Isolated sphenoid sinus fungal mucoceles are extremely rare and potentially associated with visual disturbances, cranial nerve (CN) deficits, or pituitary dysfunction. Their initial symptoms are often absent or nonspecific, and routine examination offers little information, resulting in diagnostic and therapeutic delays. A high index of suspicion and a thorough understanding of their clinical presentation, neuroradiological features, microbiological implications, and complication profile are crucial for early diagnosis and prompt management. We, herein, analyze a series of consecutive cases of isolated sphenoid sinus fungal mucoceles whom we treated, add to the currently existing published cases, and review the pertinent literature.

Methods: From the databases of endoscopic endonasal skull base and rhinological surgical procedures maintained by our groups, all cases with isolated sphenoid sinus fungal mucoceles were retrieved and included in the study. Clinical and radiological findings, histopathologic evidence of fungal rhinosinusitis, culture results, clinicopathological designation, treatment details, and outcome of CN neuropathies were analyzed.

Results: Headache was the most common symptom (seven cases). Oculomotor (three cases) and abducens (two cases) nerve palsies were encountered in five out of eight patients. Visual loss was seen in two cases. Hypopituitarism was seen in one case. All patients underwent endoscopic endonasal wide bilateral sphenoidectomy. CN palsies improved in four out of five cases.

Conclusion: Endoscopic endonasal wide sphenoidectomy is the surgical treatment of choice and should be performed in a timely manner to prevent permanent sequelae. Histopathological and microbiological examination findings should both be obtained as they dictate the next steps of therapeutic intervention.

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