Middle ear morphology and mastoid pneumatization: a computed tomography study.

BACKGROUND: Mastoid pneumatization is subject to numerous influencing factors including race, sex, and surrounding structures of the middle ear. This study aims to determine the mastoid air cell system (MACS) volume and its relationship with middle ear structures, and the influence of sex. MATERIALS AND METHODS: A cross-sectional study was performed analyzing computed tomography (CT) scans in which MACS volume and the Estachian tube length (ETL) were visible. MACS volume, ETL, and width and height of the aditus ad antrum were obtained. RESULTS: A total of 100 CT were included with a mean age of 38.5 ± 15.3 years, of which 56 were women and 44 were men. The mean right and left MACS volume were 5.43 ± 3.15 cm³ and 5.54 ± 3.43 cm3 respectively , with a ETL of 24.55 ± 3.07 mm in right side and 24.24 ± 2.60 mm on left side. A aditus ad antrum width of 2.98 ± 0.65 in right and 2.98 ± 0.58 on the left and height of 4.51 ± 1.05 and 4.32 ± 0.85, on right and left side respectively. There were statistical differences between sexes in left ETL, and in MACS volume bilaterally. A low positive correlation between aditus ad antrum height and MACS volume was identified. CONCLUSIONS: Mastoid pneumatization was bigger in men than women. There was a low positive correlation between mastoid volume and ETL on both sides, and a significant correlation between right mastoid volume and aditus ad antrum height. This could lead us to believe that the length of ETL does not affect the pneumatization of MACS.

The Prevalence of the Nasal Vestibular Body in Patients With Nasal Obstruction.

Background and aim Nasal obstruction is one of the most common reasons for consultation addressed by otolaryngologists. There are anatomical, physiological, and pathological etiologies. Sometimes the treatment can become a challenge for the specialist, so a detailed evaluation of the etiologies must be carried out. The involvement of the nasal vestibular body (NVB) in obstructive symptoms has been described. Therefore, we must be familiar with its anatomy, presentation, and contribution to this symptomatology. This study aimed to highlight the importance of NVB in the role of nasal obstruction and know the impact that it adds to the symptoms of patients through a validated instrument on their quality of life. Material and methods A retrospective, descriptive, and analytical study was conducted on 113 patients with nasal obstruction who attended the outpatient clinic of the Otolaryngology and Head and Neck Surgery Service in a tertiary-level hospital in Monterrey, Mexico from January 2021 to January 2023. The Nasal Obstruction Symptom Evaluation (NOSE) scale was applied to assess the impact of this symptom on the quality of life of the subjects. The causes involved in the obstructive symptoms were identified by physical examination, including NVB. Two groups were made as follows: with the presence of the NVB and with the absence of the NVB, and the means of the NOSE scale were compared. Results A total of 113 patients were included, 59 male patients (52.20%) and 54 female patients (47.80%). The presence of NBV was found in 72 patients (63.70%). Other causes of nasal obstruction were found in 35 patients (31%), with chronic rhinitis being the most frequent in 27 subjects (23.90%). The mean NOSE scale score was higher in the group with the presence of the NVB than in the group with the absence of the NVB (p<0.05). The primary outcome of this study was to know the prevalence of NVB in the Hispanic population with nasal obstruction who attends the otolaryngology clinic. The secondary outcome was to know the relationship between the presence of NVB and the NOSE scores. Conclusion In this study, we observed that NVB is frequently present in patients with nasal obstruction in northeastern Mexico. There is an association between the presence of NVB and higher scores on the NOSE scale. New research will be needed to assess the effectiveness of NVB surgery in improving nasal obstruction and to determine the impact of NVB on nasal obstruction in isolation.

Prognostic value of systemic immune-inflammation index and serological biomarkers for deep neck infections / Valor pronóstico del índice de inmunoinflamación sistémica y biomarcadores serológicos para infecciones profundas del cuello

Background: Inflammatory biomarkers, including C-reactive protein, erythrocyte sedimentation rate, neutrophil tolymphocyte ratio, platelet to lymphocyte ratio, and the systemic immune-inflammation index, have been proposedas prognostic factors diverse pathologies. However, their application for deep neck infections has yet to be clarified.Material and Methods: We performed a retrospective study of 163 adult patients with diagnosis of deep neck infec-tions with the aim to evaluate the association between serological biomarkers with complications and outcomes ofpatients with DNI. Studied variables included demographic data, complications of DNI, outcomes, complicationsand death of the included subjects. The evaluated serological biomarkers were hemoglobin, leukocytes, neutrophils,lymphocytes, platelets, glucose, creatinine, albumin, CRP, and ESR. NLR, PLR, and SIII index were estimated.Results: The patients’ mean age was 40.6 ± 15.3 years. Complications of DNI were observed in 19.6% (n=32) patients, being the need for tracheostomy due to airway obstruction (11%, n=18) and mediastinitis (8.6%, n= 14) themost common. Evaluated subjects had an increased value of serological biomarkers (SII index 2639.9 ± 2062.9,NLR 11.3 ± 8.5, PLR 184.1 ± 108.5, CRP 12.6 ± 8.9 mg/dL, ESR 20.7 ± 9.1 mm/h). Patients with complicationshad a significantly higher value of all inflammatory parameters (p < 0.05). A SII index cut-off value of 2975 wasselected from a ROC curve analysis. A sensitivity of 93.8%, specificity of 86.3%, a positive predictive value of62.5%, and a negative predictive value of 98.3% are reported. The SII index was found to have an increased positive predictive value compared to NLR, PLR, and CRP for DNI complications.Conclusions: Our analysis concluded that the SII index, NLR, and PLR are valuable biomarkers to assess the risk value of 2975.(AU)

Initial evaluation and external validation of 68Ga-PSMA-11 PET/CT in tubarial gland characterization.

INTRODUCTION: Radiotracer 68Ga-PSMA-11 used in PET/CT scans allows for identification and localization of gland tissue. It allows for their consideration in clinical scenarios and to design further and stronger research to answer pertinent questions regarding their function and implications. We aimed to externally validate first reported findings of location, size, and ligand uptake of the tubarial glands using 68Ga-PSMA-11 PET/CT. MATERIALS AND METHODS: A cross-sectional study was performed with 68Ga-PSMA-11 PET/CT studies of patients with prostate cancer confirmed diagnosis from the database of the Radiology Department from 2018 to 2022. The maximum cephalocaudal length (CCL) in the tubarial glands and the Maximum Standardized Uptake Value (SUVmax) of major glands were recorded. RESULTS: A total of 202 patients were included (mean age 67.43 ± 8.5). The mean CCL of the tubarial glands was 37.38 ± 9.84 and a SUVmax of 6.56 ± 2.14. The rest of the glands were as follows: parotid 15.12 ± 4.43, submandibular 16.82 ± 5.43 and sublingual 5.84 ± 3.24. No differences were found between laterality. A weak correlation between age and SUVmax of tubarial glands was identified. Tubarial glands had a similar 68Ga-PSMA-11 uptake to that of sublingual glands. CONCLUSION: This study corroborates the existence of a conglomerate of glands in the nasopharynx roof, near the posterolateral pharyngeal recess. It serves as validation in a different population with similar results in previous research. Without 68GA-PSMA-11 PET/CT the abundance, configuration and potential clinical relevance of these glands would probably not have been identified. Radiotracer uptake was similar amongst the major salivary glands, with a more similar uptake to that shown by the sublingual gland.

Neurovascular structures in the lateral recess of the sphenoid sinus. A computed tomography evaluation / Estructuras neurovasculares en el receso lateral del seno esfenoidal mediante tomografía computarizada

Introduction and objectives Anatomical variations of the lateral recess of the sphenoid sinus and its relations with the adjacent neurovascular structures should be preoperatively evaluated to plan an adequate surgical approach and avoid iatrogenic injuries. This study aims to analyze the patterns of pneumatization of the lateral recess of the sphenoid sinus and their association with the presence of protrusion and dehiscence of the optic canal, carotid canal, vidian canal, and maxillary nerve. Materials and methods A retrospective evaluation of 320 sphenoid sinuses by computed tomography was performed. Studied variables included type of lateral recess, and protrusion, and dehiscence of the optic and carotid canal, and vidian and maxillary nerve. Results The mean age was 45.67±17.43. A total of 55.6% (n=178) of the evaluated sphenoid sinuses corresponded to male subjects. Protrusion of the carotid canal, maxillary nerve, and vidian canal was associated with a type 3 lateral recess pneumatization, while dehiscence of these structures was most commonly observed in a type 2 lateral recess (p=<0.001). Conclusions Protrusion or dehiscence of neurovascular structures surrounding the sphenoid sinus has been associated with the extent of pneumatization of the lateral recess, increasing the risk of intraoperative injury. Preoperative identification of anatomical variations is mandatory to select the best approach for skull base lesions and avoid iatrogenic injuries (AU)

Introducción y objetivos Las variaciones anatómicas del receso lateral del seno esfenoidal, y su relación con las estructuras neurovasculares adyacentes deben ser evaluados de manera preoperatoria para planear un abordaje quirúrgico adecuado, y evitar lesiones iatrogénicas. El objetivo del presente estudio es analizar los patrones de neumatización del receso lateral del seno esfenoidal y su asociación con la presencia de protrusión y dehiscencia del canal óptico, canal carotídeo, canal vidiano y del nervio maxilar. Material y métodos Se realizó una evaluación retrospectiva de 320 senos esfenoidales por tomografía computarizada. Las variables estudiadas fueron el tipo de receso lateral y la protrusión y dehiscencia del canal óptico, canal carotídeo, canal vidiano y del nervio maxilar. Resultados La edad media de los pacientes fue de 45,67±17,43 años. Un total del 55,6% (n=178) de los senos esfenoidales evaluados correspondieron a pacientes del sexo masculino. La protrusión del canal carotídeo, nervio maxilar y canal vidiano se asoció a la neumatización de receso lateral tipo 3, mientras que la dehiscencia de estas mismas estructuras observó más frecuentemente en patrón de neumatización de receso lateral tipo 2 (p≤0,001). Conclusión La protrusión o dehiscencia de estructuras neurovasculares adyacentes al seno esfenoidal se han asociado con la extensión de la neumatización del receso lateral, aumentando el riesgo de lesiones intraoperatorias. La identificación preoperatoria de variantes anatómicas es crucial para seleccionar el mejor abordaje quirúrgico para lesiones de base de cráneo y evitar lesiones iatrogénicas (AU)

Neurovascular structures in the lateral recess of the sphenoid sinus. A computed tomography evaluation.

INTRODUCTION AND OBJECTIVES: Anatomical variations of the lateral recess of the sphenoid sinus and its relations with the adjacent neurovascular structures should be preoperatively evaluated to plan an adequate surgical approach and avoid iatrogenic injuries. This study aims to analyze the patterns of pneumatization of the lateral recess of the sphenoid sinus and their association with the presence of protrusion and dehiscence of the optic canal, carotid canal, vidian canal, and maxillary nerve. MATERIALS AND METHODS: A retrospective evaluation of 320 sphenoid sinuses by computed tomography was performed. Studied variables included type of lateral recess, and protrusion, and dehiscence of the optic and carotid canal, and vidian and maxillary nerve. RESULTS: The mean age was 45.67±17.43. A total of 55.6% (n=178) of the evaluated sphenoid sinuses corresponded to male subjects. Protrusion of the carotid canal, maxillary nerve, and vidian canal was associated with a type 3 lateral recess pneumatization, while dehiscence of these structures was most commonly observed in a type 2 lateral recess (p=<0.001). CONCLUSIONS: Protrusion or dehiscence of neurovascular structures surrounding the sphenoid sinus has been associated with the extent of pneumatization of the lateral recess, increasing the risk of intraoperative injury. Preoperative identification of anatomical variations is mandatory to select the best approach for skull base lesions and avoid iatrogenic injuries.

Role of early extraction of odontogenic focus in deep neck infections

Background: Odontogenic deep neck infections remain a common condition that presents a challenging issue due to the complex involvement of the neck and adjacent structures and its potential life-threatening risk. Periapical infection of the second or third molar with spread to the submandibular and parapharyngeal spaces is the most commonly observed scenario. However, the time of dental extraction of the infection focus remains controversial. The aim of this study is to provide an overview of the epidemiology, clinical and radiological features, and management in patients diagnosed with ODNI and to identify the role of early dental extraction on patient outcomes and recovery. Material and methods: This retrospective study included patients over 18 years old with a diagnosis of ODNI who were admitted to the University Hospital "Dr Jose Eleuterio Gonzalez" from January 2017 to January 2022. ODNI diagnosis was based on clinical and radiological evidence of the disease supplemented by dental and maxillofacial evaluation for an odontogenic aetiology. Results: A total of 68 patients were included in the study. The patients' mean age was 40.96 ± 14.9. Diabetes mellitus was the most common comorbidity. The submandibular space was the most common deep neck space involved (n=59, 86.8%). Mediastinitis, marginal nerve injury and orocervical fistula were observed in 7.5% of patients, with no fatality in this series. A delay of >3 days for dental extraction of the involved tooth was associated with an increased rate of mediastinitis (n=3, 100%, p= 0.022), number of surgical interventions (1.45 ± 0.61, p= 0.006), ICU stay (n=8, 40%, p= 0.019), and ICU length of stay (0.85 ± 0.8, p= 0.001). Conclusions: Expedited management with surgical drainage and intravenous antibiotic treatment, along with early extraction of the involved tooth, is mandatory. (AU)

Deep Neck Infections: Demographic and Clinical Factors Associated with Poor Outcomes.

INTRODUCTION: Deep neck infections (DNIs) are abscesses located in the profound spaces of the neck and constitute one of the most common otolaryngological life-threatening emergencies. The aim of this study is to review the clinical and demographic data of patients with DNI and identify factors associated with prolonged hospitalization, reoperation, and mortality. METHODS: Retrospective review and analysis of 75 patients with DNI admitted from January 2015 to December 2019 in a tertiary referral hospital. RESULTS: Of 75 patients, 50 (66.6%) were males and 25 (33.3%) females. Age ranged from 18 to 91 years with a mean of 41.79 (±15.48). DNIs were odontogenic in 49 patients (65.3%). History of diabetes mellitus (DM) was positive in 26 patients (34.6%). The submandibular space was involved in 57 patients (76%). Streptococcus spp. were isolated in 35 patients (46%). Intubation for airway preservation was needed in 21 patients (28%) and tracheostomy in 6 (8%). Mediastinitis presented in 8 patients (10.67%), with a mortality rate of 62.5% (n = 5). Mean hospital stay was 9.13 days (±7.2). DM (p = 0.016), age (p = 0.001), BMI classification 3, 4, and 6 (p = 0.041), and intensive care unit (ICU) admission (p = 0.009) were associated with a longer stay. Surgical drainage was performed after 1.71 days (±1.65). Surgical reintervention was needed in 6 cases (8%) and was associated with temporal (p = 0.001) and masticator (p = 0.002) space involvement and DM (p = 0.009). Overall mortality was 8% and decreased to 1.5% when mediastinitis was excluded. Mediastinitis (p = 0.001), ICU admission (p < 0.0001), Streptococcus spp. (p = 0.019), and low hemoglobin levels (p = 0.004) were associated with mortality. DISCUSSION/CONCLUSION: DNIs are entities associated with high morbimortality. Mediastinitis and airway obstruction are life-threatening possible complications and should be promptly evaluated. Low HB could be used as a predicting factor for mortality.

"Chronic granulomatous invasive fungal rhinosinusitis associated with SARS-CoV-2 infection: A case report".

INTRODUCTION AND IMPORTANCE: Granulomatous chronic invasive fungal rhinosinusitis (GCIFR) is a rare entity with scarce cases reported mainly in subtropical areas. Its prevalence among individuals with clinical suspicion of fungal rhinosinusitis has been reported in approximately 20% in subtropical populations, unlike North America with a prevalence of 0.5%. It is typically associated with Aspergillus flavus and the presence of noncaseating granulomas or Langerhans giant cells on histopathologic examination. CASE PRESENTATION: We describe a case of a patient with clinical history of recent SARS-CoV-2 infection and development of intense cephalalgia, visual impairment, palpebral ptosis, and limitation of extraocular movements. MRI demonstrated the presence of opacification of paranasal sinuses, and a left intraconal abscess. A surgical endoscopic approach was performed and histopathologic examination revealed frontal GCIFR and maxillary fungus ball. Treatment with IV azoles provided adequate clinical response. CLINICAL DISCUSSION: The spectrum of the fungal rhinosinusitis disease is not clear. However, non-invasive fungal rhinosinusitis is not often found concomitantly with invasive types. GCIFR typically manifests with an indolent and gradual progression at early stages. Advanced stages can exhibit orbital and intracranial involvement leading to visual impairment, frequent relapses, and a poor prognosis. A higher incidence of invasive fungal rhinosinusitis has been reported in patients with SARS-CoV-2 infection despite an unremarkable medical history, associated with immune dysregulation. CONCLUSION: GCIFR is a rare condition with few cases reported in America. Because of its uncommonness, its diagnosis is often delayed leading to increased morbidity and mortality.

Anatomical and positional variants of the brachiocephalic trunk in a Mexican population.

BACKGROUND: Brachiocephalic trunk (BCT) variants may have a clinical impact during surgical procedures, some of which could be fatal. The objective of this study was to classify height positions of the BCT and report their prevalence in a Mexican population. METHODS: Patients: A retrospective, descriptive, observational, and cross-sectional was performed using computed tomography angiography (CTA) of adult (> 18 years of age) patients, without gender distinction, of Mexican origin. Measuring techniques were standardized using the suprasternal notch to analyze linear and maximum heights, linear and curved lengths, and the vertebral origin and bifurcation levels of the BCT. RESULTS: A total of 270 CTA were obtained (66.7% men and 33.3% women). A high position of BCT was present in 64.81% (n 175/270). The mean linear medial height was 0.58 ± 1.91 cm, the maximum height of the free edge was 3.85 ± 2.04 cm, side length of the midline at the maximum height of the free edge was 1.46 ± 2.59, linear length 3.72 ± 0.70, and a curve length 3.99 ± 0.79. The BCT origin was most predominant at the T3 (57.9%) and T4 (27.0%) vertebral levels, with the bifurcation at T2 (57.9%) and T1 (36.2%). CONCLUSIONS: There is a high prevalence of high position BCT in our population. Patients should be assessed before any procedures in the area, due to the potential risk of complications.

Age adjusted normative data for Video Head Impulse Test in healthy subjects.

PURPOSE: This study aims to assess the effect of age in vestibulo-ocular reflex (VOR) gain measured by Video Head Impulse Test (VHIT) and to present normative data of VOR gain, median gain at 40, 60, 80 and 0-100 ms, and gain asymmetry according to decades of life in healthy subjects. MATERIAL AND METHODS: A total of 132 subjects with no previous history of vestibular disorders were enrolled to assess VOR gain by employing VHIT. The test was performed in the X-axis evaluating both horizontal semicircular canals (HSC). The same right-handed operator performed the test in all subjects. RESULTS: The mean VOR gain was higher in the right ear (0.99 ± 0.09) compared to the left ear (0.97 ± 0.08) (p = 0.001). Median gain at 60 ms was 0.92 ± 0.12 in the right HSC and 0.93 ± 0.10 for the left HSC, without significant difference (p = 0.94). A significant decrease of VOR gain occurred with increasing age in the right ear (r = -0.21, p = 0.01). Median gain at 60 ms decreased significantly as age increased in both HSC (right r = -0.17, p = 0.04; left r = -0.23, p = 0.006). No significant differences in VOR gain values were observed when the sample was stratified by age according to the analysis of variance. CONCLUSIONS: A slight but significant decrease in VOR function was observed as age increased for gain and median gain at 60 ms. Larger studies, including patients with central and peripheral vestibular disorders, are needed to assess the clinical implication of this effect when evaluating patients with vestibular disorders.

Sphenoid Sinus: Pneumatization and Septation Patterns in a Hispanic Population.

INTRODUCTION: Pneumatization of the sphenoid sinus (SS) varies widely among different ethnic groups. Information regarding the prevalence and significance of SS variants among Hispanic groups is limited. This study aims to describe and analyze pneumatization and septation patterns of the SS in a Hispanic population. METHODS: A total of 160 paranasal sinus computed tomographies were reviewed by a head and neck-specialized radiologist and 2 otolaryngologists. RESULTS: The postsellar and sellar types were the most frequent patterns of pneumatization observed, with a prevalence of 52.5 and 40%, respectively. Accessory septations were present in 59.4% of the patients. Septa were inserting over the internal carotid artery (ICA) in 43.8% and over the optic nerve in 17.5% of the population. No significant association (p > 0.05) was observed when comparing the different accessory septation patterns among the types of the SS. The frequency of septa inserting on the ICA was significantly higher in postsellar types (p < 0.001). Pneumatization of the anterior clinoid process, pterygoid processes, and greater wing was present in 20, 17.5, and 45.9% of the sinuses, respectively. Onodi cells were encountered in 40% of the sinuses. There were no significant differences in any of the pneumatization and septation variables when compared by gender and age (p > 0.05). DISCUSSION/CONCLUSION: Differences regarding anatomical variants and septations of the SS were observed in our study when compared with findings reported in other ethnic groups. Preoperative assessment of the anatomical variants of the SS in Mexican patients is imperative to select the most optimal surgical approach and prevent iatrogenic injuries to related neurovascular structures.

Malignant otitis externa: An updated review.

Malignant otitis externa is a progressive infection of the external auditory canal and skull base. Pseudomonas aeruginosa is the most isolated microorganism and it affects mostly to diabetic, elderly, and immunocompromised individuals. Non-resolving otalgia and chronic otorrhea are the clinical manifestations presented. Facial nerve palsy is a common and well recognized complication. (Computed tomography) CT scan is useful for initial assessment, Technetium-99m is highly sensitive and is part of the protocol for diagnosis. Treatment should be individualized, with multidisciplinary cooperation among specialties. Management involves systemic antipseudomonal antibiotics and monitoring with radiologic techniques, it also involves the strict control of diabetes. It is essential to follow up the patients for at least a year post-treatment. In refractory malignant otitis externa and affection of facial nerve, surgical management is recommended. We reviewed the most recent studies on epidemiology, clinical manifestations, diagnosis, and treatment to provide an update on Malignant Otitis Externa that can offer an overview for clinical practice and future research.

Prevalence of facial canal dehiscence and other bone defects by computed tomography.

INTRODUCTION: The facial nerve is the most vulnerable structure during otological surgeries. Facial canal dehiscence (FCD) is the main risk factor for iatrogenic injuries. Its prevalence in clinical studies ranges between 6 and 33.3%, while anatomical studies report 25-57%. The objective was to determine the prevalence of FCD stratified by age and gender in a healthy population. MATERIALS AND METHODS: Temporal bones from high-resolution computed tomography (CT) were analyzed. Patients with a history of trauma or tumors of the temporal bone, cholesteatomas, chronic middle ear disease, and any pathology that could modify the bone's anatomy, were excluded. RESULTS: A total of 184 temporal bones were included. FCD was observed in 94 (51.2%) of the analyzed bones. The tympanic portion was the most frequently affected site with 91 (49.5%), followed by the mastoid segment with 3 (1.6%). No dehiscence was found in the labyrinth portion. We observed 30 (31.9%) of the FCD involved the oval window. Other bone defects identified with the FCD included: 11 (11.7%) with a lateral semicircular canal fistula and 7 (7.4%) with tegmen tympani erosions. CONCLUSION: FCD has a high prevalence among healthy patients. A pre-surgical otological evaluation using high-resolution CT should be indicated to properly assess the patient and reduce the risk of injury.

Impact of bilateral nasal polyposis on the interoptic and interzygomatic distance.

PURPOSE: To identify and determine variations on eye distance in patients with bilateral nasal polyposis (BNP) compared to a healthy control group. METHODS: This is a case-control study that included 20 BNP patients and 40 healthy controls. We included all patients with BNP confirmed by pathology and a computed tomography scan. A healthy control group was admitted, filtered by the exclusion criteria of nasal polyposis, craniofacial malformations, and encephalocele. Paranasal sinus CT scans were performed in all participants, and two measures were evaluated, the interoptic (soft tissue) and the interzygomatic (bone structure) distances. RESULTS: A total of 20 BNP subjects, 13 (65%) male and 7 (35%) female, with a mean age of 38.8 years, and 40 healthy controls, 16 (40%) male and 24 (60%) female with a mean age of 43.2 years, were included. The mean interoptic distance was 69.7 mm (71.9 mm men, 66.4 mm women) and interzygomatic distance was 103.1 mm (104.5 mm men, 100.6 mm women). A significant increase of the interoptic (p < 0.001) and interzygomatic (p < 0.002) measurements was found in patients with polyposis compared to the controls. In the receptor operative curve analysis, the interoptic distance had an area under a curve of 96% and the threshold that maximizes the sensitivity and specificity was 59.85 mm (sensitivity 90%, specificity 95%, PPV 90%, NPV 95%). CONCLUSIONS: An increase in ocular and orbital distances was identified in patients with BNP. Polyposis may be identified by measuring eye separation. The established cut point distance identifies patients that may benefit from follow-up. Further research in this study line is suggested.

Sudden sensorineural hearing loss in atypical Cogan's syndrome: A case report.

The Cogan's syndrome (CS) is a very uncommon inflammatory condition that appears in young adults without a gender predisposition. It can be presented as typical, with interstitial non-syphilitic keratitis and Ménière-like audiovestibular manifestations. An atypical form of CS involves uveitis, scleritis, episcleritis, and systemic vascuitis symptoms. This is a case of a 41-year old male who reported eye redness, photophobia, and gait instability. His condition progressed to a sudden sensorineural hearing loss, tinnitus, and constant vertigo accompanied by cephalea. He was evaluated by the Otolaryngology, Ophthalmology, and Neurology departments giving rise to CS, Ménière's syndrome, acoustic neuroma, glaucoma, multiple sclerosis, and meningioma as differential diagnoses. The patient was prescribed with oral and intravenous steroids, ophthalmic antibiotics and steroids, as well as oral omeprazole. The patient was discharged, without his eye manifestations, and for his clinical progress and underwent conventional and speech audiometry, otoacoustic emissions, nystagmography, tympanometry, and auditory steady-state response, that showed a vestibular disfunction and a severe sensorineural hearing loss. His follow-up, six months later resulted with a normal vestibular function and an improvement from severe to mild sensorineural hearing loss. The Cogan's syndrome is a rare condition which can leave the patient with permanent incapacitating secuelae including profound hearing loss. Effective treatment is necessary to avoid complications and improve the patient's condition and life quality.

Anatomical variations of the ethmoidal roof: differences between men and women.

AIM: During the paranasal sinuses surgery different complications may occur, both vascular and bony. The objective of the present study was to evaluate the ethmoidal roof configuration through the Keros and Yenigun classifications, analyzing results stratified by gender and side. MATERIALS AND METHODS: We retrospectively analyzed 120 high-resolution computed tomography paranasal sinus study images and measured the depth of the cribriform plate in a coronal view and the anterior-posterior length in a cross section. RESULTS: The Keros Type II was the most frequent and no statistically significant difference was found when comparing by gender. Yenigun type I was more prevalent, and a statistically significant difference was found between men and women in types I and II (p = 0.010 and p = 0.049, respectively). Statistical difference was observed in anterior-posterior means in the comparison between both classifications. In both, right and left side for men (p = 0.003 and p = 0.05) and women (p = 0.029 and p = 0.039). CONCLUSION: We demonstrate the morphological variability that exists in this region. Gender differences that must be considered by the surgeon to avoid complications. Further studies are needed to evaluate the value of these findings when predicting surgical complications. A CT before PNS surgery is already widely accepted.

Early hearing loss detection in rheumatoid arthritis and primary Sjögren syndrome using extended high frequency audiometry.

The aim of this study is to evaluate the hearing behavior of rheumatoid arthritis (RA) and primary Sjögren syndrome (PSS) patients and compare them with a healthy control group and with each other. A comparative cross-sectional study was performed with a group of 117 female RA patients, a group of 60 female PSS patients, and a 251 female healthy control group. Every subject underwent a series of studies including high-frequency audiometry, speech audiometry, and tympanometry. The high-frequency audiometry measured 250 to 16,000 Hz. The 117 patients with RA and the 60 with PSS were diagnosed according to American College of Rheumatology criteria / ACR 2010, and the validated classification of the American-European Consensus Group. Hearing loss was present in 36.8% of the RA group in 500-3000 Hz, 68.4% in 4000-8000 Hz, and 94.9% in 10,000-16,000 Hz. Hearing loss was present in 60% of the PSS group in 500-3000 Hz, 70% in 4000-8000 Hz, and 100% in 10,000-16,000 Hz. The hearing impairment prevalence of both groups was significantly different (p < 0.05) when compared with the healthy control group. We also compared the hearing thresholds between RA and PSS patients, finding a significant hearing threshold increase in 500-3000 Hz of the PSS group. This study consolidates the association between RA and PSS with hearing impairment. A deeper hearing loss was reported in PSS than in RA patients, demonstrating a greater auditory and speech recognition repercussion.

Dyspnea and dysphagia associated to hypopharyngeal fibrolipoma: A case report.

Fibrolipomas are benign lesions conformed by fat and connective tissue, classified as histologic variants of lipomas. They are rarely located in the head and neck and represent less than 0.6% of the benign tumors of the larynx and hypopharynx. Their clinical presentation depends on its location and size. We present the case of a 51-year-old male patient who reported progressive dyspnea, dysphagia and obstructive sleep symptoms with a duration of 3 months, without apparent cause. A pharyngolaryngeal fiberoptic endoscopy showed a smooth, rounded mass in the posterior wall of the hypopharynx, partially obstructing the laryngeal vestibule, creating a valve effect. Complete trans-cervical resection of the lesion was performed after the airway was secured by means of a tracheotomy. The final histopathology report was fibrolipoma. He is currently asymptomatic and without evidence of relapse one year after the procedure.