A mucocele of a paranasal sinus is a mucus filled cystic mass lined by epithelium filling the involved sinus whose ostium is obstructed. While frontoethmoidal mucoceles are common, Onodi cell mucoceles are less frequently seen. Due to its anatomic proximity to optic nerve, it can lead to devastating visual complications. A 29 year old female presented with progressive loss of vision in right eye since 20 days leading to complete loss of vision since 12 days without any nasal complaints. Endoscopy showed fullness in right spheno-ethmoidal region. Computed Tomography scan revealed a mucocoele of the right Onodi air cell causing compression of intracanalicular part of right optic nerve. Despite urgent surgical decompression of mucocele, vision could not be restored. Poor visual acuity at presentation may be associated with bad prognosis. Hence, a high index of suspicion followed by appropriate imaging (CT scan and/or MRI nose and paranasal sinus) is crucial for early diagnosis in case of unexplained progressive diminution of vision, even in setting of no nasal complaints.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9702395 | PMC |
| http://dx.doi.org/10.1007/s12070-021-02567-z | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Do Anatomical Variations Affect the Location of Solitary Sphenoid Sinus Fungal Balls? A 10-Year Retrospective Study.
J Rhinol
March 2024
Department of Otorhinolaryngology-Head and Neck Surgery, Kyung Hee University Hospital, Kyung Hee University College of Medicine, Seoul, Republic of Korea.
Background And Objectives: Sinonasal fungal balls (FBs) most commonly occur in the maxillary sinus, followed by the sphenoid sinus (SS). Relatively little is known about the predisposing factors and pathogenesis of unilateral sphenoid sinus fungal balls (SSFBs) compared to maxillary sinus FBs. We investigated whether anatomical variations have clinical implications for the location of unilateral SSFBs.
View Article and Find Full Text PDFSurgeon versus radiologist: an inter-rater reliability analysis of the CLOSE checklist for preoperative CT sinus assessment.
Eur Arch Otorhinolaryngol
November 2024
Department of Otolaryngology-Head and Neck Surgery, McGill University, Royal Victoria Hospital, Montreal, QC, Canada.
Purpose: To assess the inter-rater agreement of the Cribriform plate, Lamina papyracea, Onodi cell, Sphenoid sinus pneumatization, and Ethmoidal artery (CLOSE) checklist results among rhinology & skull-base surgeons and a head and neck-neuroradiology specialist for pre-operative computed tomography (CT) sinus assessment.
Methods: This retrospective cross-sectional study reviewed 50 patients who underwent endoscopic sinus surgery (ESS) in the period between January 2013 and March 2014 at the Royal Victoria Hospital in Montreal, Canada. According to the CLOSE checklist, the CT scans were evaluated independently by one surgeon and one radiologist using the InteleRadiology Picture Archiving and Communication System (IntelePACS).
A Computed Tomography (CT)-Based Observational Study of Anatomical Variations in the Sphenoid Sinus: Implications for Surgical Planning and Patient Outcomes.
Cureus
August 2024
Department of Otolaryngology, Head and Neck Surgery, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Dr. D. Y. Patil Vidyapeeth, Pune, IND.
Introduction: The sphenoid sinus (SS), a paired paranasal sinus located within the sphenoid bone, is crucial in various physiological and pathological processes. Its anatomical variations are of significant interest in clinical practice, particularly in otolaryngology, neurosurgery, and radiology. This study aims to determine the anatomical variations of the SS and related structures using computed tomography (CT).
View Article and Find Full Text PDFAnteriorly tilted CT to visualize the anterior wall of the sphenoid sinus.
Auris Nasus Larynx
October 2024
Department of Otolaryngology-Head and Neck Surgery, Iwate Medical University School of Medicine, 1-1-1 Yahaba-cho, Shiwa-gun, Iwate 028-3695, Japan.
Article Synopsis
- The study aimed to assess how effective a 30-degree anteriorly tilted coronal CT scan is in visualizing the anterior wall of the sphenoid sinus.
- The researchers reviewed cases from patients who had nose-related surgeries and found that standard CT scans often missed the anterior wall unless an Onodi cell was present, with a 17.7% failure rate when it wasn't.
- The results showed that the tilted CT scans reliably identified the anterior wall regardless of the Onodi cell's presence, though some other nearby structures might be harder to see with this method.*
The Ethmomaxillary Sinus-A False Duplicate Maxillary Sinus.
J Craniofac Surg
July 2024
Division of Anatomy, Department 1, Faculty of Dentistry, "Carol Davila" University of Medicine and Pharmacy.
Functional endoscopic sinus surgery consistently benefits from good anatomical knowledge and modern imaging techniques. Ethmoid air cells migrate in specific topographical sites near the ethmoid. Posterior ethmoid air cells that descend into the maxillary sinus (MS) are ethmomaxillary sinuses (EMSs) that into the superior nasal meatus.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!