A retrospective analysis of 29 isolated sphenoid fungus ball cases from a medical centre in Korea (1999-2012)

Clinical Characteristics of Sphenoid Sinus Fungus Ball: A Nine-year Retrospective Study of 77 Cases

OBJECTIVE

This study aimed to investigate the clinical characteristics of sphenoid sinus fungus ball (SSFB) to help increase the accuracy of diagnosis and efficiency of treatment.

METHODS

We retrospectively analyzed the data of 77 patients who were histopathologically diagnosed with SSFB.

RESULTS

The mean age of SSFB patients was 52.4 years (range 25-84), and 47 patients (61.0%) were female. Compared to age-matched and sex-matched chronic rhinosinusitis (CRS) patients, headache was more common in SSFB patients (79.2%; p < 0.0001). SSFB patients also had higher prevalence of diabetes than CRS (p = 0.0420). The features of computed tomography (CT) were sphenoid sinus opacification (100%), sclerosis (93.5%), calcification (76.6%), and bone erosion (41.6%). Functional endoscopic sinus surgery (FESS) was the best treatment option, and the trans-ethmoid (n = 64, 83.1%) was the most commonly used approach. No one experienced a recurrence of SSFB in 44 successfully contacted patients. Six months after FESS, 91.0% of patients (40/44) established proper drainage in the sphenoid sinus. The recovery rates for headache and nasal symptoms were 91.7% (33/36) and 77.8% (7/9) respectively.

CONCLUSION

SSFB is more prevalent in older women and usually presents as unilateral headache. Diabetes is a potential risk factor for SSFB. CT findings provide evidence for diagnosis and suggestions for surgical approaches. FESS is the optimal treatment for SSFB. After FESS, most patients had good prognosis with no recurrence of SSFB. However, regular endoscopic follow-up is required due to the possibility of the postoperative closure of sphenoid ostium.

LEVEL OF EVIDENCE

3 Laryngoscope, 133:3292-3298, 2023.

Characterization of fungus ball CT-hyperdensities within maxillary and sphenoid sinuses

OBJECTIVES

CT-scan hyperdensities (HD) are described in more than 60% of all paranasal sinus fungus ball (FB) cases. Two types can be distinguished according to their density: calcium and metal types. We aimed to establish the prevalence and density of the HD observed in sphenoid and maxillary sinus FB and their relation to dental factors.

METHODS

This retrospective study included 64 patients operated in a tertiary referral center for unilateral maxillary or sphenoid FB diagnosed by histology or mycology. Pre-operative CT scans were analyzed by three independent observers (two ENT and one radiologist).

RESULTS

There were 45 maxillary FB and 19 sphenoid FB. 63 FB showed HD. Metal-type HD were observed in 28 maxillary FB but not in sphenoid sinuses. Among maxillary FB, the prevalence of endodontic treatment was significantly more significant on the FB side than on the healthy side (p = 0.02). The prevalence of endodontic treatment on the pathological side was more significant in the metal-type group than in the group without metal-type HD (p = 0.01). Isolated calcium-type HD were evidenced in 17 maxillary FB and 18 sphenoid FB (p = 0.019).

CONCLUSION

This study highlights the existence of two different types of HD in FBs of the paranasal sinuses with an association between metal-type HD and endodontic treatments.

Surgical treatment of isolated sphenoid sinusitis - A case series and review of literature

•

Isolated sphenoid opacification is a rare pathology that is increasingly being described and it represents 1–2% of sinus infections.

•

The most frequent symptom associated with isolated sphenoid sinusitis is intractable headache.

•

Isolated sphenoid sinusitis is usually treated surgically and endoscopic transnasal sphenoidectomy is the preferred surgical technique.

•

Highly inflammatory diseases such as fungal infections may be associated with an increased risk of re-ossification of the sphenoid ostium following sphenoidectomy.

Introduction

Isolated sphenoid opacification is a rare pathology. Unlike other sinusitis, the treatment is most often surgical. Only few studies reporting the recurrence rates with long-term follow-ups are available in the literature. In our experience, isolated sphenoid sinusitis tends to have a significant recurrence rate after a first surgical intervention. This study aims to describe our experience with patients operated for isolated sphenoid sinusitis and to compare our reoperation and complication rates with those reported in the literature.

Methods

We conducted an electronic chart review of patients operated at the CHU de Québec between 2007 and 2018 for isolated sphenoid sinusitis.

Results

29 patients were analyzed. All patients had a sphenoidectomy with a transnasal approach. The reoperation rate was 103% (3/29) and the mean recurrence time was 15 (9–26) months. Among the patients reoperated, 2 patients had a fungus ball and one had a mucocele. Both patients with fungal balls had reossification of their sphenoidal ostium whereas the patient with the mucocele rather had a mucosal closure. No patient encountered any serious post-operative complication. Median duration of follow-up was 44 months (IQR: 25–68) for the 29 patients analyzed in our study.

Conclusion

Reoperation rates reported in the literature are probably underestimated. Our series emphasizes the importance of long-term follow-up for these pathologies. Highly inflammatory and chronic conditions such as fungal diseases could be linked to an increase in the occurrence of relapses.

Headache Secondary to Isolated Sphenoid Sinus Fungus Ball: Retrospective Analysis of 6 Cases First Diagnosed in the Neurology Department

Fungal sphenoid sinusitis is easily misdiagnosed in clinic, particularly for patients with normal immunological status. Due to the anatomic characteristics of sphenoid sinus, patients presented with various nonspecific symptoms and complications. Headache is the most common presentation, but location of headache is not fixed. We intended to analyze 6 cases of headache secondary to the isolated sphenoid sinus fungus ball (SSFB) which were first diagnosed in the Neurology Department. There was significant female predominance with mean ages of 55 years. They had repeatedly headache history from months to years. The headache was unilateral and usually on the side of lesions. Medication of pain relievers worked well in the beginning of SSFB, but not in the late stage of disease. Notably, all patients did not present positive nervous systemic signs. A preoperative computed tomography (CT) scan or magnetic resonance imaging (MRI) demonstrated the inflammation in sphenoid sinus. Some cases showed calcification in soft tissue or bone lesions of sinus wall. All of 6 patients undertook transnasal endoscopic sphenoidotomy without antifungal therapy after operation. Characteristic fungus ball (FB) was detected after histopathological examination. No headache recurrence was found after average 15.5 months follow-up. Our results suggested that transnasal endoscopic sphenoidotomy is the treatment of choice to remove the FB in sphenoid sinus with a low rate of morbidity and recurrence.

Isolated sphenoid sinus fungus ball: a retrospective study conducted at a tertiary care referral center in Korea

Fungus ball (FB) is the most common form of extramucosal fungal rhinosinusitis involving one or more paranasal sinuses. The sphenoid sinus is an uncommon site of this disease. Here, we present our 20-year experience of managing isolated sphenoid sinus FB (SSFB). We retrospectively reviewed a series of 47 cases of isolated SSFB encountered between 1996 and 2015 with reference to the chronological incidence, demographics, clinical features, radiological findings, treatment modalities, and outcome. Recently, the number of patients with isolated SSFB has increased markedly. The mean age of the patients in this study was 63.1 years (range 26-84 years), and there was significant female predominance. The most common symptom was headache (72.3%), which was localised in various regions. On the other hand, nasal symptoms presented at a relatively low rate. On computed tomography, the most common findings were total opacification, calcification, and sclerosis of the bony walls. There was no significant difference in the presence of SSFB between the ipsilateral and contralateral sides of the nasal septal deviation and concha bullosa. Magnetic resonance imaging demonstrated an isointensity on T1-weighted images and marked hypointensity on T2-weighted images. Treatment consisted of endonasal endoscopic sphenoidotomy with complete removal of the FB. The prognosis was good, with no recurrence after a mean follow-up of 13.2 months. Isolated SSFB is a rare disease, but its prevalence is increasing. Although the clinical presentation is usually vague and nonspecific, SSFB should be considered in patients with unexplained headache, especially in elderly women. Endoscopic sphenoidotomy is a reliable treatment with low morbidity and recurrence rates.

Skull base erosion and associated complications in sphenoid sinus fungal balls

BACKGROUND

Sphenoid sinus fungal balls (SSFB) are rare entities that can result in serious orbital and intracranial complications. There are few published reports of complications that result from SSFB.

OBJECTIVE

To review the incidence of skull base erosion and orbital or intracranial complications in patients who present with SSFB.

METHODS

A retrospective review was performed of all the patients with SSFB who were treated at the Massachusetts Eye and Ear Infirmary from 2006 to 2014. Presenting clinical data, radiology, operative reports, pathology, and postoperative course were reviewed.

RESULTS

Forty-three patients with SSFB were identified. Demographic data were compared between patients with (39.5%) and those without (61.5%) skull base erosion. Two patients underwent emergent surgery for acute complications of SSFB (one patient with blindness, one patient who had a seizure). Both patients with acute complications had evidence of skull base erosion, whereas no patients with an intact skull base developed an orbital or intracranial complication (p = 0.15). All the patients were surgically managed via an endoscopic approach.

CONCLUSION

SSFBs are rare but may cause significant skull base erosion and potentially severe orbital and intracranial complications if not treated appropriately. Endoscopic sphenoidotomy is effective in treating SSFB and should be performed emergently in patients who presented with associated complications.

Isolated sphenoid fungal sinusitis and coexisting intrasellar mass lesion presenting with headache as the sole symptom

A case of isolated sphenoid fungal sinusitis in an elderly diabetic patient is described. A coexisting mass lesion located in the sellar region was detected incidentally. Coincidence of these two entities represents a potential surgical disaster which may result in direct intracranial spread of fungal infection.