Granulomatous Inflammation of the Skull Base: A Rare Case of Mycobacterium tuberculosis in the United States.

The differential for an ill-defined, bone-destructive, granulomatous lesion of the skull base includes malignancy, as well as autoimmune and infectious processes. Suspicion for tuberculosis of the skull base in high-risk patients is particularly necessary given the difficulty to culture on standard cultures, need for specific and prolonged antibiotic therapy, and dire morbidity if not diagnosed and treated in a timely manner. Repeat biopsies and cultures were necessary to diagnose this case of Mycobacterium tuberculosis of the skull base after initial biopsy was non-diagnostic. Laryngoscope, 2024.

Recurrence morbidity of olfactory neuroblastoma.

BACKGROUND: With modern treatment paradigms, olfactory neuroblastoma (ONB) has favorable overall survival (OS); however, the incidence of recurrence remains high. The primary aims of this study were to delineate the prognosis of recurrence of ONB and explore how recurrence subsites are associated with OS, disease-specific survival (DSS), and further recurrence. METHODS: A retrospective chart review of ONB cases from nine academic centers between 2005 and 2021 was completed. Tumor characteristics, recurrence subsites, timelines to recurrence, additional recurrences, and survival estimates were determined using descriptive and time-to-event analyses. RESULTS: A final cohort of 233 patients was identified, with 70 (30.0%) patients recurring within 50.4 (standard deviation ±40.9) months of diagnosis on average, consisting of local (50%), neck (36%), intracranial (9%), and distant (6%) recurrence. Compared with subjects without recurrence, patients with recurrence had significantly different primary American Joint Committee on Cancer T stage (p < 0.001), overall stage (p < 0.001), and modified Kadish scores (p < 0.001). Histopathology identified that dural involvement and positive margins were significantly greater in recurrent cases. First recurrence was significantly associated with worse 5-year DSS (hazard ratio = 5.62; p = 0.003), and subjects with neck or local recurrence had a significantly better DSS compared to intracranial or distant recurrence. CONCLUSIONS: Recurrent cases of ONB have significantly different stages and preoperative imaging factors. Patients with local or neck recurrence, however, have better DSS than those with intracranial or distant recurrence, independent of initial tumor stage or Hyams grade. Identifying specific factors that confer an increased risk of recurrence and DSS is important for patient counseling in addition to surveillance planning.

The relationship between survey-based subjective olfactory awareness and objective olfactory function.

KEY POINTS: Correlation between symptom-based surveys and objective olfactory testing is variable. For diagnosis and symptom monitoring, surveys should correlate with objective testing. The Odor Awareness Scale (OAS) and Affective Importance of Odor Scale (AIO) showed significant but moderate positive correlations with University of Pennsylvania Scent Identification Test (UPSIT) score.

Detection of plagiarism among rhinology scientific journals.

KEY POINTS: Automated plagiarism-checking software can be a valuable tool for detecting plagiarism in manuscripts. Twenty-five of 60 articles (42%) had at least one incidence of plagiarism, predominately text recycling. A "similarity score" ranging from 22% to 35% could be a potential cut-off value when screening submitted manuscripts.

Which intranasal corticosteroids can be used in patients on highly active antiretroviral therapy or pre-exposure prophylactic?

KEY POINTS: All intranasal corticosteroid spray formulations are safe to use in patients on pre-exposure prophylaxis. Beclomethasone nasal spray can be used safely with all HAART and PrEP regimens.

The Surprising Effect of Priming on SNOT-22 Results.

BACKGROUND: Priming is a psychological phenomenon where subconscious cues in the environment impact our behavioral responses in certain situations. Well studied in the worlds of business, marketing, and even politics, it is unclear how the priming phenomenon impacts patient perception of their own disease state nor how they report that perception using tools like the Sinonasal Outcomes Test (SNOT-22), used to measure that perception in chronic rhinosinusitis. OBJECTIVE: To determine the impact of positive or negative priming on self-reported patient perception of their chronic rhinosinusitis disease using the SNOT-22 disease-specific quality of life instrument. METHODS: Single-blind, randomized, prospective cohort pilot study of 206 consecutive adult patients with a clinical diagnosis of chronic rhinosinusitis presenting to a university rhinology clinic. Patients were randomized to receive "positive priming" (103) or "negative priming" (103) by reading a passage about the positive or negative aspects of chronic sinusitis and its treatment respectively. Patients were then asked to fill out the SNOT-22 and results between the two groups were compared. RESULTS: The negative priming group had a higher median SNOT-22 score of 49 [IQR = 39] compared to the positive priming groups' score of 22 [IQR = 27], p < 0.0001), a difference of nearly three times the minimal clinical impactful difference (MCID). This effect was consistent regardless of age or sex of the patient. Subgroup analysis revealed a greater impact when priming was performed by the senior male attending regardless of patient age or sex (p < 0.001), while priming performed by the younger female research fellow had greater impact on older patients (>59 years, p = 0.001) and female patients (p = 0.003). CONCLUSIONS: Priming impacts how patient's perceive their chronic rhinosinusitis as determined by the SNOT-22. It is imperative that the rhinologist understand this when using this instrument in research applications and in clinical decision-making for patients.

"Left on their own": Left-handedness among rhinologists and otolaryngology trainees.

KEY POINTS: Left-hand-dominant (LHD) respondents reported higher rates of training difficulties because of handedness differences. LHD respondents cited particular difficulty with functional endoscopic sinus surgery. Both LHD and right-hand-dominant respondents perceived a need for laterality-specific training during residency.

Primary ciliary dyskinesia: An update on contemporary diagnosis.

KEY POINTS: Primary ciliary dyskinesia (PCD) is a complex diagnosis without a universal diagnostic test Clinicians must have some skepticism of historic diagnoses of PCD Clinicians should consider a diagnosis of PCD in patients with recalcitrant disease.

In Vivo Fluticasone Absorption in Surgical Patients.

BACKGROUND: Intranasal corticosteroids (INCS) are a treatment mainstay of chronic rhinosinusitis and allergic rhinitis. Current computational models demonstrate that >90% of INCS drug deposition occurs on the head of the inferior turbinate and nasal valve, rather than the actual sinuses. These models do not consider mucociliary clearance which propels mucus posteriorly, nor do they consider the absorption of the drug. The purpose of this study is to better understand the exact anatomical location where INCS are absorbed. METHODS: Patients with chronic rhinosinusitis and allergic rhinitis taking fluticasone pre-operatively who were scheduled for functional endoscopic sinus surgery and inferior turbinate reduction, respectively, were recruited. Intra-operative tissue samples were obtained from predetermined locations within the sinonasal cavity. Mass spectrometry was then used to quantify the amount of absorption in each specific anatomic location to determine the largest amount of absorption. RESULTS: Eighteen patients were included in our study. The greatest fluticasone absorption levels across the sinonasal anatomy were at the anterior inferior turbinate (5.7 ngl/mL), ethmoid sinus, (4.4 ng/mL), posterior inferior turbinate (3.7 ng/mL), maxillary sinus (1.3 ng/mL), and the sphenoethmoidal recess (0.72 ng/mL) respectively. Absorption was significantly higher in revision surgery compared to surgically naïve patients. CONCLUSIONS: Computation fluid dynamic models of the nasal passage are useful models to help predict intranasal particle flow. However, these models do not incorporate or consider the important mucociliary clearance system, leading to absorption of fluticasone throughout the sinonasal cavity far beyond that predicted by these models. LEVEL OF EVIDENCE: 2 Laryngoscope, 134:1551-1555, 2024.

Simple and safe resection of the crista galli.

A critical procedure in the transcribriform approach is the resection of the crista galli. However, the standard technique for crista galli resection has several disadvantages. We reviewed the cases of patients with olfactory neuroblastomas who underwent an endoscopic endonasal transcribriform approach using a newly developed technique for crista galli resection. We performed a cadaveric study to measure the superior accessibility limits using the proposed method. We included 38 patients with olfactory neuroblastomas in this study. The tumor invaded the posterior crista galli in four patients. The anterior end of the crista galli was not invaded by the tumor. Our cadaveric study showed that the dura was approachable to the point that was 7.4 ± 1.3 mm superior and 23.2 ± 7.2 mm lateral to the foramen cecum following crista galli removal. By resecting the crista galli in advance, manipulation of the superior dura became feasible.

Characterizing Adverse Events of Biologic Treatment of T2 Disease: A Disproportionality Analysis of the FDA Adverse Event Reporting System.

INTRODUCTION: Over the last 3 years, the FDA has approved dupilumab, omalizumab, and mepolizumab for the treatment of CRSwNP; however, adverse events of these biologics have not been described in post-marketing surveillance trials. By utilizing the FDA Adverse Event Reporting System (FAERS), this study describes and compares biologic-associated adverse events in T2 disease. METHODS: This case-non-case study assessed disproportionate reporting rates using reporting odds ratios (RORs). RORs and p values for biologic-associated AEs were categorized and compared among dupilumab, omalizumab, and mepolizumab. This analysis included AEs associated with all treatment indications. Relative AE rates and outcomes were calculated. RESULTS: There were a total of 112,560, 24,428, and 18,741 unique AE reports associated with dupilumab, omalizumab, and mepolizumab, respectively. Omalizumab had the strongest association with anaphylaxis (ROR = 20.80, 95% confidence interval [CI]: 18.58, 23.29). Dupilumab had large relative proportions and positive signals in the ophthalmologic category (7.76%, ROR = 6.20, 95% CI: 6.06, 6.35), such as with blurry vision (ROR = 3.80, CI: 3.52, 4.12) and visual impairment (ROR = 1.98, CI: 1.80, 2.19). Dupilumab was the only biologic associated with injection-site reactions (7.98%, ROR = 8.17, 95% CI: 7.98, 8.37). DISCUSSION/CONCLUSION: This is the first large-scale comparative analysis of the AE profiles of dupilumab, omalizumab, and mepolizumab. Our data suggest possible relations between dupilumab and ophthalmologic and injection-site AEs. Omalizumab was the only biologic with a positive anaphylaxis signal. This FAERS investigation suggests important AE differences among these biologics.

Histologic characterization of primary ciliary dyskinesia chronic rhinosinusitis.

KEY POINTS: We present the largest cohort of structured histopathology reports on primary ciliary dyskinesia-related chronic rhinosinusitis (PCD-CRS). Despite endoscopic differences, PCD-CRS and cystic fibrosis-related chronic rhinosinusitis (CF-CRS) had similar structured histopathology reports. Compared to healthy patients and those with idiopathic chronic rhinosinusitis without nasal polyps, patients with PCD-CRS had an increased neutrophil count.

Multicenter Survival Analysis and Application of an Olfactory Neuroblastoma Staging Modification Incorporating Hyams Grade.

Importance: Current olfactory neuroblastoma (ONB) staging systems inadequately delineate locally advanced tumors, do not incorporate tumor grade, and poorly estimate survival and recurrence. Objective: The primary aims of this study were to (1) examine the clinical covariates associated with survival and recurrence of ONB in a modern-era multicenter cohort and (2) incorporate Hyams tumor grade into existing staging systems to assess its ability to estimate survival and recurrence. Design, Setting, and Participants: This retrospective, multicenter, case-control study included patients with ONB who underwent treatment between January 1, 2005, and December 31, 2021, at 9 North American academic medical centers. Intervention: Standard-of-care ONB treatment. Main Outcome and Measures: The main outcomes were overall survival (OS), disease-free survival (DFS), and disease-specific survival (DSS) as C statistics for model prediction. Results: A total of 256 patients with ONB (mean [SD] age, 52.0 [15.6] years; 115 female [44.9%]; 141 male [55.1%]) were included. The 5-year rate for OS was 83.5% (95% CI, 78.3%-89.1%); for DFS, 70.8% (95% CI, 64.3%-78.0%); and for DSS, 94.1% (95% CI, 90.5%-97.8%). On multivariable analysis, age, American Joint Committee on Cancer (AJCC) stage, involvement of bilateral maxillary sinuses, and positive margins were associated with OS. Only AJCC stage was associated with DFS. Only N stage was associated with DSS. When assessing the ability of staging systems to estimate OS, the best-performing model was the novel modification of the Dulguerov system (C statistic, 0.66; 95% CI, 0.59-0.76), and the Kadish system performed most poorly (C statistic, 0.57; 95% CI, 0.50-0.63). Regarding estimation of DFS, the modified Kadish system performed most poorly (C statistic, 0.55; 95% CI, 0.51-0.66), while the novel modification of the AJCC system performed the best (C statistic, 0.70; 95% CI, 0.66-0.80). Regarding estimation of DSS, the modified Kadish system was the best-performing model (C statistic, 0.79; 95% CI, 0.70-0.94), and the unmodified Kadish performed the worst (C statistic, 0.56; 95% CI, 0.51-0.68). The ability for novel ONB staging systems to estimate disease progression across stages was also assessed. In the novel Kadish staging system, patients with stage VI disease were approximately 7 times as likely to experience disease progression as patients with stage I disease (hazard ratio [HR], 6.84; 95% CI, 1.60-29.20). Results were similar for the novel modified Kadish system (HR, 8.99; 95% CI, 1.62-49.85) and the novel Dulguerov system (HR, 6.86; 95% CI, 2.74-17.18). Conclusions and Relevance: The study findings indicate that 5-year OS for ONB is favorable and that incorporation of Hyams grade into traditional ONB staging systems is associated with improved estimation of disease progression.

Plasmacytoma of the Head and Neck: Case Series and Review of the Literature.

Solitary plasmacytoma is a rare neoplasm characterized by localized proliferation of monoclonal plasma cells and is classified as solitary bone or solitary extramedullary plasmacytoma. Here, we present two rare cases of plasmacytoma of the head and neck. The first is a 78-year-old male who presented with a 3-month history of epistaxis and progressive obstruction of the right nasal passage. Computerized tomography (CT) imaging revealed a mass in the right nasal cavity with destruction to the maxillary sinus. An excisional biopsy was performed revealing anaplastic plasmacytoma. The second is a 64-year-old male with a past medical history significant for prostate cancer who presented with a 2-month history of left ear pain and progressive non-tender temporal swelling. A PET/CT revealed a highly avid, destructive, and lytic left temporal mass with no other evidence of distant disease. A left temporal craniectomy and infratemporal fossa dissection revealed plasma cell dyscrasia with monoclonal lambda in situ hybridization. Although plasmacytomas are uncommon tumors of the head and neck, they may mimic other entities that require different treatment. Prompt and accurate diagnosis is critical for appropriate therapeutic decisions and prognosis.

Sinonasal quality of life in primary ciliary dyskinesia.

KEY POINTS: Our findings suggest that primary ciliary dyskinesia (PCD)-related chronic rhinosinusitis (CRS) has a more significant impact on quality of life than CRS without nasal polyps and cystic fibrosis (CF). PCD and CF have similar mucociliary clearance defects, yet sinonasal symptom severity varies between the two.

Pituitary adenoma associated with xanthogranuloma.

Xanthogranuloma (XG) of the sellar region is a non-neoplastic inflammatory lesion characterized histologically by recent and remote hemorrhage, necrotic debris, fibrosis, chronic inflammation, and cholesterol clefts with associated foreign-body giant cells. The inflammatory lesion was recognized by the World Health Organization in 2000. XG of the sellar region is rare. Cases of pituitary adenoma (PA) with an associated XG (PA/XG) are extremely rare, with a total of 16 cases in the literature. PA/XG lacks specific clinical and radiologic signs, making pre-operative diagnosis challenging. Herein, we report a case of PA/XG, describe the radiologic and pathologic findings, and discuss the role of so-called silent or "subclinical pituitary apoplexy" in the possible histogenesis of PA/XGs.

Racial and Ethnic Bias in Letters of Recommendation and Personal Statements for Application to Otolaryngology Residency.

INTRODUCTION: The persistent lack of racial and ethnic diversity within the field of otolaryngology calls for an analysis of potential bias within the residency application system. Letters of recommendation (LORs) and personal statements (PSs) are the most important subjective application constituents. This subjectivity predisposes these components to implicit bias. In applications to various surgical subspecialties, prior linguistic studies assessing bias in reviews of LOR show race-based differences. Thus far, racial and ethnic linguistic differences in LORs for otolaryngology applicants have not been analyzed in the literature. METHODS: LORs and PSs were abstracted from otolaryngology - head and neck surgery applications in the Electronic Residency Application Service for the 2019-20 and 2020-21 application cycles. Linguistic Inquiry and Word Count 2015 was used for quantitative analysis of emotional, cognitive, and structural components of written text. RESULTS: Race-pair analysis of the 2019-2021 application cycles revealed higher mean "teaching" scores for LORs for Asian, black, Hispanic, and white applicants when compared to applicants who self-identified as Other. White applicants had lower scores for the terms "research" and "analytic" when compared to Asian and black applicants, respectively. Analysis of PSs revealed greater scores for an "authentic" writing style for white versus Asian applicants. White applicants were found to have higher scores for "tone" compared to black applicants. CONCLUSION: Minor racial and ethnic language differences exist in both LORs and PSs. A statistically significant difference was observed among LORs, with the "teaching" term used more frequently for Asian, black, Hispanic, and white applicants compared to self-identified Other individuals. For PSs, statistically significant differences were observed among white applicants, who wrote about themselves using more "authentic" language when compared with Asian applicants and who also had higher scores for "tone" compared to black applicants. Although these differences were statistically significant, the practical impact of the variances is likely small.