Overall and disease-specific survival of sinonasal adenoid cystic carcinoma: a systematic review and meta-analysis.

This meta-analysis aims to investigate the outcome of sinonasal adenoid cystic carcinoma (snAdCC). We followed PRISMA guidelines and included studies reporting 5-year overall survival (OS) rates for snAdCC. Eligible studies were identified through a literature search and assessed using JBI critical appraisal checklist. A total of 17 studies were included comprising 2259 patients (mean age: 58.1 years, 52.7% female, 47.3% male). The meta-analysis demonstrated that the 5-year OS, 10-year OS, and 5-year disease-free survival (DFS) were 68%, 40%, and 47.2%, respectively. Descriptive statistics on study level showed high rates of locally advanced tumor stages at diagnosis: 23% cT3, 53% cT4, 3.4% N+, and 4.2% M+. 29.7% of the tumors were in the nasal cavity, 67.6% in the paranasal sinuses. The maxillary, ethmoid, sphenoid, and frontal sinus were affected in 50.9%, 7.2%, 4%, and 0.5%, of cases. A combination of surgery and radiotherapy was used in 45.4% of the patients and 19.3% of patients received surgery only. In conclusion, these findings emphasize the significance of thorough surveillance for individuals with snAdCC to identify any potential recurrence or progression of the disease.

Open rhinoplasty using a columellar strut: effects of the graft on nasal tip projection and rotation.

BACKGROUND: Despite the discordance in the literature concerning the effect of columellar strut grafts on nasal tip rotation, this method is often used when an increase in nasolabial angle or nasal tip projection is desired. OBJECTIVES: We aimed to elucidate the change in nasolabial angles and nasal tip projections after exclusive columellar strut graft implantations and in addition to other surgical steps. Furthermore, differences in these parameters between patients with conchal and septal columellar strut grafts were investigated. METHODS: A monocentric retrospective cohort study of 173 open septorhinoplasties with columellar strut graft technique, between 2006 and 2016, was conducted. The pre- and postoperative nasal tip projection, nasolabial and nasofrontal angle and interalar distance were determined and the Goode-ratio was calculated. RESULTS: In cases where uprotation was not specifically desired, neither nasolabial angles nor tip projections changed significantly, irrespective of whether a columellar strut graft was used alone or with additional surgical steps. If an uprotation through surgery was desired, a significant mean increase in nasolabial angle of 4.4° was achieved. Furthermore, conchal instead of septal columellar strut grafts showed significantly better results. CONCLUSION: In our study, a columellar strut graft-without any additional surgical step-does only have an improving impact on nasal tip rotations and projections, if specifically intended to by the surgeon. In other words, if the strut graft was not chosen for an uprotational intention, it did not relevantly impact on the nasolabial angle or nasal tip projection. However, in patients where an uprotation is desired, the columellar strut graft still represents a meaningful tool. Since conchal instead of septal columellar strut grafts showed better results, we suggest using them for these patients. LEVEL OF EVIDENCE: 2b.

Longstanding diplopia after ethmoidal artery ligation for epistaxis.

PURPOSE: In the rare case of intractable, posterior, non-sphenopalatine artery epistaxis, ligation of ethmoidal arteries using an external approach like a Lynch-type incision is required. Orbital complications, especially extra-ocular motility disorders with diplopia, are known, but in the literature rarely described. Our aim was to analyse the complication type, rate, and outcome of ethmoidal artery ligation for epistaxis. MATERIALS AND METHODS: Data between 2012 and 2017 of patients treated with ethmoidal artery ligation were analysed retrospectively and through a telephone interview using a non-standardized questionnaire. RESULTS: Data of 18 patients (m/f = 3/15) aged 53-83 years were reviewed. Epistaxis recurred in only one patient after 1 month. Five patients (28%) suffered from diplopia shortly after surgery. Motility analysis revealed full recovery with free motility in four out of five reported cases after 4-8 months, one patient still reports intermittent mild diplopia more than 1 year postoperatively. CONCLUSION: In patients with intractable, non-sphenopalatine artery epistaxis, anterior ethmoidal artery ligation was highly effective. Diplopia, however, occurred in one-third of our patient group. Information about motility restriction with longer standing diplopia are mandatory when consenting patients for ligation of ethmoidal arteries. Special care needs to be taken during dissection in the region of the trochlea and superior oblique muscle. LEVEL OF EVIDENCE: Case Series, level 4.

Erratum to "Intratumoral Heterogeneity of MAGE-C1/CT7 and MAGE-C2/CT10 Expression in Mucosal Melanoma".

[This corrects the article DOI: 10.1155/2015/432479.].

Occurrence of occult CSF leaks during standard FESS procedures.

OBJECTIVE: To determine the incidence of occult cerebrospinal fluid leaks (CSF) after functional endoscopic sinus surgery (FESS) and to evaluate the diagnostic performance of beta2-transferrin in blood-contaminated conditions. STUDY DESIGN: Prospective cohort study. METHODS: An analysis of 57 intraoperative samples using hydrogel 6 beta2-transferrin assay after FESS was undertaken. In case of CSF positive samples and continuing rhinorrhea, reanalysis after more than 1 year was conducted. In-vivo analysis of a primary spontaneous CSF leak sample took place to verify difficulties in detecting beta2-transferrin in blood-contaminated settings. Own titrations were performed to evaluate detection limits of CSF by beta2-transferrin and beta-trace protein assays in these settings. RESULTS: An incidence of 13% for occult CSF leaks after FESS was found. In blood-contaminated conditions, routine beta2-transferrin assays showed low sensitivity. In over 1 year follow-up, all samples were negative for CSF and none of them developed clinical relevant CSF leaks or meningitis. CONCLUSION: Occult and clinically irrelevant CSF leaks do occur in a significant proportion of patients during and shortly after FESS. Intra- and postoperatively, routine beta2-transferrin assays show low sensitivity. They should not be used in these settings. The clinical course of patients with occult CSF leaks indicated possibility of an uneventful follow-up.

PD-L1 is a positive prognostic factor in squamous cell carcinoma of the nasal vestibule.

BACKGROUND: Aim was to analyse the role of PD-L1 in squamous cell carcinomas of the nasal vestibule. Advanced squamous cell carcinoma of the nasal vestibule is a highly aggressive tumour. The role of PD-L1 expression is unclear in this tumour type. METHODOLOGY: Forty-six patients diagnosed between 1995 and 2014 were analyzed. Baseline characteristics and outcome were correlated to immunohistochemical staining of PD-L1. PD-L1 positivity of tumour cells and tumour infiltrating immune cells (TIIC) was defined by any staining of more than 1% of the tumour cells. RESULTS: PD-L1 expression was interpretable in 31 of 46 patients (67.4%). PD-L1 positivity was present in 14 (45.2%) patients tumour cells and 17 (54.8%) patients TIIC. PD-L1 positivity of tumour cells was associated with a favourable disease free survival (p=0.019). CONCLUSIONS: Positivity for PD-L1 in tumour cells is a prognostic factor in squamous cell carcinoma of the nasal vestibule and might enable a patient-tailored treatment.

Prospective evaluation of a nonsurgical device for rhinoplasty.

BACKGROUND: Rhinoplasty represents one of the most challenging and frequently performed procedures in plastic surgery and non-surgical rhinoplasty is rarely considered. The aim of this study was to investigate whether the Nasella Nose Former (NNF), a newly developed non-surgical rhinoplasty device, could improve objective and subjective results following surgical rhinoplasty and even correct the shape of the nose without any surgery at all. METHODOLOGY: In this prospective, monocentric, two-armed, non-blinded randomized, controlled clinical trial, a total of 43 participants were included. In the Surgical group, 22 patients undergoing open or closed rhinoplasty with osteotomies were randomised based on their birth year; 15 of them got to wear the NNF over 8 weeks postoperatively and 7 patients getting surgery without the NNF formed the control group. In the Cosmetic group, 21 participants wore the NNF without surgery over 14 months. At every follow-up exam, angles for crookedness, nasal hump and width were measured, the investigator assessed the patients nose and asked for patient satisfaction using a Likert-scale. RESULTS: Patients in the Surgical group wearing the NNF did not show any significant difference concerning objective measurements, investigator assessments and patient satisfaction compared to those not wearing the NNF. In the Cosmetic group, participants did not show objective improvements in measurements and investigator assessment. However, participants were significantly more satisfied after 14 months with their nasal back, nasal axis and outer nose in general. CONCLUSIONS: Considering the results of this study, we conclude that this perfectly customised external device to enhance surgical rhinoplasty outcomes or correct the shape of the nose without surgery does not seem to be effective and that further investigations in this field are not meaningful.

Intratumoral Heterogeneity of MAGE-C1/CT7 and MAGE-C2/CT10 Expression in Mucosal Melanoma.

Mucosal melanoma is a rare disease, which differs from its cutaneous counterpart genetically and for its clinical behaviour. Moreover this is a heterogeneous disease based on the tissue of origin. As CT7 and CT10 are highly expressed in cutaneous melanoma and are immunogenic in this disease, we analysed their expression throughout the different subtypes of mucosal melanoma and tumor development. We detected a frequent expression of CT7 in primaries and corresponding metastases (55%) as well as for CT10 (30%). This expression resulted to be heterogeneous in the same tumor specimen and moreover influenced by the tissue of origin. Our results support the role of these antigens in immunotherapy for mucosal melanoma.

Measurement of Optic Nerve Sheath Diameter: Differences between Methods? A Pilot Study.

BACKGROUND: Quantification of the optic nerve sheath diameter is a promising approach for the detection of elevated intracranial pressure. The comparability of current methods is unclear. The objective of this study was to assess the relationship between optic nerve sheath diameter as measured with computed tomography, magnetic resonance tomography and ultrasound in patients without known optic nerve disease or increased intracranial pressure. PATIENTS AND METHODS: 15 patients (60.8 [years]±16.73 SD; 7 female) with paranasal sinus pathology in whom computed tomography and magnetic resonance imaging were performed underwent optic nerve sheath diameter measurements by ultrasound, as well as an ophthalmological examination. Ultrasound-, computed tomography- and magnetic resonance imaging-derived maximal optic nerve sheath diameter values 3 mm behind the globe were compared. RESULTS: Optic nerve sheath diameter measured (n=30) by ultrasound (mean 6.2 [mm]±0.84 SD) was significantly (p<0.01) higher than optic nerve sheath diameter in computed tomography (5.2±1.11) or magnetic resonance imaging (5.3±1.14). There was no significant (p=0.24) difference between optic nerve sheath diameter measured in computed tomography and magnetic resonance tomography. CONCLUSIONS: The comparability of optic nerve sheath diameter measurements in patients without known optic nerve disease and assumed normal intracranial pressure appears to be given between computed tomography and magnetic resonance tomography, while comparability between ultrasound and computed tomography or magnetic resonance tomography seems to be less reliable.

Multilocular sinonasal malignant melanoma: a poor prognostic subgroup?

Clinical observations show that two subtypes of sinonasal malignant melanoma exist: uni- and multilocular melanoma. The aim of this retrospective study was to determine the prevalence and outcome of multilocular sinonasal malignant melanoma. All patients with sinonasal malignant melanoma treated at our institution between 1992 and 2011 were included. Survival and recurrence data were analyzed related to the distribution pattern of the tumors and other factors. Twenty-five patients were identified and included in the analysis. Seven patients (28 %) suffered from multilocular, the remaining 18 patients (72 %) from unilocular sinonasal malignant melanoma. The first group showed a significantly worse disease-free survival, whereas disease-specific and overall survival did not differ between the two subtypes. Multilocular sinonasal malignant melanoma is associated with an unfavorable disease-free survival compared to its unilocular counterpart.

Access to the crista galli and the foramen caecum in nasal dermal sinus cysts - lessons learned in a single tertiary care centre.

OBJECTIVE: Several surgical techniques have been suggested for the treatment of nasal dermal sinus cysts (NDSC). We have used several different techniques and have developed a minimally invasive approach. The aim of this study is to describe the evolution to this approach and compare the results with those achieved with our experience of more traditional techniques. METHODOLOGY/PRINCIPAL: A retrospective data collection of patients with NDSC presenting to our clinic between 1998 and 2012 was performed. We initially performed external approaches as outlined elsewhere. With an increasing number of young children requiring surgery, the technique was modified to a less invasive form. This new approach starts with mobilisation of the pit via a tiny skin incision. An open rhinoplasty approach is used to follow the fistula on the nasal bone. Once the fistula passes underneath the nasal bone, an endoscopic endonasal approach is used. Following the fistula cranially, the area of the foramen caecum can be identified. RESULTS: Twelve out of 15 patients (80%) were treated surgically. The transfacial, coronal subcranial and minimally invasive approach was used in 3 (25%), 4 (33%) and 5 patients (42%), respectively. Radical resection was achieved in all patients. Cosmetic problems were present in all patients undergoing a transfacial and in half of the patients after the coronal subcranial approach. Patients treated by the minimally invasive technique remained without sequelae. CONCLUSION: The minimally invasive approach enables a perfect exposure of the fistula up to the crista galli and provides less morbidity and better cosmetic results than the transfacial and subcranial approach.

Merkel cell carcinoma of the head and neck: a single institutional experience.

Merkel cell carcinoma (MCC) is a rare cutaneous malignancy occurring mostly in older immunocompromized Caucasian males. A growing incidence of MCC has been reported in epidemiological studies. Treatment of MCC usually consists of surgical excision, pathological lymph node evaluation, and adjuvant radiotherapy. This paper reports the experience of a single tertiary center institution with 17 head and neck Merkel cell carcinoma patients. Median followup for the cohort was 37.5 months. After five years, recurrence-free survival, disease specific survival, and overall survival were 85%, 90%, and 83%, respectively. Our limited data support the use of adjuvant radiotherapy. We also report two cases of MCC located at the vestibule of the nose and two cases of spontaneous regression after diagnostic biopsy. About 40% of our patients were referred to our center for surgical revision and pathological lymph node evaluation. Increased awareness of MCC and an interdisciplinary approach are essential in the management of MCC.

Regulation and expression of IL-32 in chronic rhinosinusitis.

BACKGROUND: Activated T lymphocytes and their interaction with resident tissue cells, particularly epithelium, play important roles in inflammatory processes in chronic rhinosinusitis (CRS). IL-32 is a recently described cytokine, which is expressed in a variety of tissue cells and involved in the pathogenesis of several chronic inflammatory diseases. METHODS: Human sinus epithelial cells were isolated from biopsies and stimulated with different cytokines, which play a role in the pathogenesis of CRS. IL-32 mRNA expression was analyzed using real-time-PCR, IL-32 protein was determined by Western blot and flow cytometry as well as immunofluorescent staining in primary sinus epithelial cells and nasal biopsies from patients with CRS and healthy controls. RESULTS: IL-32 mRNA was upregulated by TNF-α and IFN-γ in primary sinus epithelial cells, whereas IL-1 ß, IL-4, IL-13, and IL-17 did not influence IL-32 expression. IL-32 mRNA expression was significantly higher in human primary sinonasal epithelial cells (HSECs) cocultured with Th1 cells compared with HSECs cocultured with Th0 or Th2 cells. IL-32 mRNA expression was significantly higher in biopsies from sinus epithelial tissue of CRS patients with nasal polyps compared with healthy subjects (P = 0.01). IL-32 was detected in biopsies from patients with CRS, whereas it was scarcely present in control tissues. CONCLUSION: The induction of IL-32 by TNF-α, IFN-γ and Th1 cells as well as its increased expression in sinus tissues from CRS patients with nasal polyps demonstrated a potential role for IL-32 in the pathogenesis of CRS.

The value of 18F-FDG-PET/CT imaging for sinonasal malignant melanoma.

The aim this study was to evaluate imaging findings using position emission tomography (PET) in combination with computed tomography (CT) and 18F-fluorodeoxyglucose ((18)F-FDG) in sinonasal malignant melanoma (SNMM) of the head and neck in a retrospective analysis of a consecutive cohort of patients. (18)F-FDG-PET/CT examinations were performed for initial staging and compared with CT or magnetic resonance tomography (MRI), and (18)F-FDG-PET alone. Medical records were reviewed retrospectively with regard to the location and the size of the tumor. Furthermore, locoregional and distant metastases with a consecutive change in therapy detected by (18)F-FDG-PET/CT were assessed. Ten patients suffering from sinonasal malignant melanoma were staged and followed by (18)F-FDG-PET/CT imaging. A total of 34 examinations were obtained. (18)F-FDG-PET/CT depicted all primary tumors adequately. Aside from one cerebral metastasis all regional and distant metastases were truly identified by using this method. In summary, if available, (18)F-FDG-PET/CT is a valuable imaging modality for staging and re-staging sinonasal malignant melanoma to evaluate expansion of the primary tumor, locoregional disease, and distant metastases.

On the effectiveness of treatment options in epistaxis: an analysis of 678 interventions.

BACKGROUND: Epistaxis represents one of the most common emergencies in ENT clinics around the world. It creates great physical and emotional stress to the patient as well as a financial burden on health-care systems. A lot of research has been performed with regard to aetiology and possible treatment, however, not much effort has been put into analysing the effectiveness of common treatment forms. It is the objective of this study to clarify which of these treatment forms is reliable. STUDY DESIGN: Retrospective cohort study. LEVEL OF EVIDENCE: 2b. METHODS: Between 03/2007 and 04/2008, all epistaxis therapies including relapses and treatment failures at the University Hospital of Zurich have been documented using a computerised questionnaire. Different treatments were compared to each other. RESULTS: An analysis of 678 interventions in 537 patients was performed with emphasis on failure proportions and time to occurrence. The estimated failure proportions of coagulation in anterior epistaxis accounts for 14%. Successful treatment of epistaxis in posterior bleedings could be achieved in 62% by packing and in 97% by surgery with a statistically significant difference between the respective groups. CONCLUSION: Using our treatment options, anterior epistaxis can be cured reliably by cauterisation. Surgical therapies in posterior bleedings are able to successfully salvage failed packing therapies.

Split-rib reconstruction of the frontal sinus: two cases and literature review.

BACKGROUND: Large defects of the anterior wall of the frontal sinus require closure using either autologous or foreign material. In cases of osteomyelitis, the reconstruction must be resistant to bacterial infection. Split-rib osteoplasty can be used in different sites. METHODS: Two patients with malignant sinonasal tumours underwent repeated treatment, and subsequently developed osteomyelitis of the frontal bone. After adequate therapy, a large defect of the anterior wall persisted. Reconstruction was performed using the split-rib method. The literature on this topic was reviewed. RESULTS: Both patients' treatment were successful. No complications occurred. A PubMed search on the topic of rib reconstruction of the frontal sinus and skull was performed; 18 publications matched the inclusion criteria. From these sources, we noted that 182 reconstructions yielded good results with few complications. CONCLUSION: Large defects of the anterior wall of the frontal sinus can be closed successfully using autologous split-rib grafting. Aesthetic outcome is good and donor site morbidity is minimal.

The transnasal transclival approach for clivus chordoma.

BACKGROUND: We present our experience using a standardized transnasal transclival approach (TTA) for endoscopic removal of chordomas of the clivus. PATIENTS: 13 patients with clival chordoma (CC) underwent tumor resection. Patients were operated by a surgical team consisting of a rhinosurgeon and a neurosurgeon. All patients underwent postoperative proton radiotherapy. Residual tumor was left in situations where radical removal would have entailed an increased risk of neurological deficits. RESULTS: Radical or near total removal of CC was accomplished in 12/13 patients. Intraoperative MRI (IMRI) was used in 4/13 CC patients. A watertight dural seal presented as the main challenge specifically for tumor extensions resulting in large dural defects. CONCLUSION: The TTA provides an elegant alternative to classical approaches to clival lesions especially for midline tumor locations. For large tumors iMRI is of significant help. Dural reconstruction of large defects emerged as the greatest challenge of this technique even for experienced endoscopic surgeons.

Isolated fungus ball mimicking mucocele or frontal sinus tumour: a diagnostic pitfall.

OBJECTIVE: To demonstrate the clinical, radiological and diagnostic pitfalls of managing an isolated frontal sinus fungus ball, and to compare with the literature. MATERIAL AND METHODS: Retrospective analysis of two cases and literature review. RESULTS: Isolated frontal sinus fungus ball is a rare cause of frontal sinus disease. We present two cases of isolated frontal sinus fungus ball which pre-operatively were suspected to be either a tumour or a mucocele. In both cases, cheesy, clay-like material was found intra-operatively within the frontal sinus, suggesting a fungus ball. Effective treatment included surgical debridement via an exclusively endoscopic or an external approach, variously. Final histopathological and mycological analysis revealed Aspergillus fumigatus. A literature review revealed 20 reported cases of isolated frontal sinus fungus ball, confirming the low prevalence of the disease. CONCLUSIONS: Frontal sinus fungus ball should be considered in the differential diagnosis of chronic, nonspecific forehead symptoms. To evaluate the underlying disease, computed tomography scans should first be performed, followed by magnetic resonance imaging if malignancy is suspected. It is essential to be aware of the possibility of an atypical fungus ball appearance on computed tomography and magnetic resonance imaging scans. If bony destruction and calcification coexist on radiological images, then endoscopic biopsy is an indispensable part of the diagnostic procedure, and should be performed to collect material for both histological and mycological analysis, and to aid surgical planning. In cases of sinus fungus ball, an endoscopic approach for biopsy may be curative.

Nontraumatic skull base defects with spontaneous CSF rhinorrhea and arachnoid herniation: imaging findings and correlation with endoscopic sinus surgery in 27 patients.

BACKGROUND AND PURPOSE: Defects at the skull base leading to spontaneous CSF rhinorrhea are rare lesions. The purpose of our study was to correlate CT and MR findings regarding the location and content of CSF leaks in 27 patients with endoscopic sinus surgery observations. MATERIALS AND METHODS: Imaging studies in 27 patients with intermittent CSF rhinorrhea (CT in every patient including 10 examinations with intrathecal contrast, plain CT in 2 patients, and MR in 15 patients) were analyzed and were retrospectively blinded to intraoperative findings. RESULTS: CT depicted a small endoscopy-confirmed osseous defect in 3 different locations: 1) within the ethmoid in 15 instances (53.6% of defects) most commonly at the level of the anterior ethmoid artery (8/15); 2) adjacent to the inferolateral recess of the sphenoid sinus in 7 patients including one patient with bilateral lesions (8/28 defects, 28.6%); 3) within the midline sphenoid sinus in 5 of 28 instances (17.9%). Lateral sphenoid defects (3.5 +/- 0.80 mm) were larger than those in ethmoid (2.7 +/- 0.77 mm, P < or = 0.029) or midsphenoid location (2.4 +/- 0.65 mm, P < or = 0.026). With endoscopy proven arachnoid herniation in 24 instances as reference, MR was correct in 14 of 15 instances (93.3%), CT cisternography in 5 of 8 instances (62.5%). Plain CT in 1 patient was negative. CONCLUSION: In patients with a history of spontaneous CSF rhinorrhea, CT was required to detect osseous defects at specific sites of predilection. MR enabled differentiating the contents of herniated tissue and allowed identification of arachnoid tissue as a previously hardly recognized imaging finding.

Management of benign inverted sinonasal papilloma avoiding external approaches.

Even though endoscopic removal of inverted papillomas has gained popularity, many studies advocate supplementary external approaches. The impact of including the current surgical staging system into the pre-operative clinical and radiological assessment has not been systematically evaluated. We present our experience with total endoscopic management of inverted papillomas and compare the accuracy of the pre-operative predicted extent of surgery, with the actually performed surgery. From 1997 to 2005 data from 51 patients with inverted papillomas were prospectively collected and subsequently reviewed. All have been operated on endoscopically without an external approach. The overall recurrence rate was 3.9 per cent. Pre-operative prediction of extent of surgery was accurate in 26 of 51 (51 per cent). The main reasons for the inaccurate pre-operative prediction were the variable sizes and locations of the inverted papilloma bases, particularly in the maxillary sinus and the frontal recess. Our results encourage us to recommend endoscopic management as the standard treatment of benign inverted papillomas.