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Fan X, Ding C, Zhao G, Hou Y. Comparing the Double-Echo Steady-State with Water Excitation and Constructive Interference in Steady-State Sequence Techniques for Identifying Extracranial Facial Nerve and Tumor Positions in Patients with Parotid Tumors. AJNR Am J Neuroradiol 2024; 45:1355-1362. [PMID: 38637024 PMCID: PMC11392360 DOI: 10.3174/ajnr.a8309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 04/08/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND AND PURPOSE Reliable preoperative visualization of facial nerve morphology and understanding the spatial relationship between the facial nerve and tumors in the parotid gland can help clinicians perform safe and effective surgeries. Hence, this study aimed to compare the image quality of extracranial facial nerves obtained by using double-echo steady state with water excitation (DESS-WE) and CISS sequences and evaluate their diagnostic efficacy in the localization of parotid tumors. MATERIALS AND METHODS In total, 32 facial nerves of 16 healthy volunteers and 25 facial nerves of 25 patients with parotid tumors were included in this retrospective study. All participants underwent noncontrast-enhanced extracranial facial nerve MR imaging with DESS-WE and CISS with a 3T MR scanner equipped with a 64-channel head and neck coil. Image quality was subjectively evaluated by using a 5-point Likert scale by 2 radiologists. Inter- and intrarater agreements were assessed by using the Cohen κ coefficient. Receiver operating characteristic analysis was performed, and the diagnostic efficacies of DESS-WE and CISS images in localizing parotid tumors were calculated. RESULTS For healthy volunteers (11 men and 5 women; median age, 26 years), image quality scores for CISS were significantly higher than those for DESS-WE for the discrimination of the temporofacial and cervicofacial trunks (both, P < .001). In patients with parotid tumors (12 men and 13 women; median age, 58 years), CISS performed better than DESS-WE in terms of visualizing the spatial relationship of the facial nerve to the tumor and diagnostic confidence (both, P < .001). Regarding the localization of parotid tumors, CISS showed excellent performance, comparable to that of DESS-WE (area under the curve, 0.981 versus 0.942, P = .1489). CONCLUSIONS CISS achieved diagnostic performance comparable to DESS-WE in parotid tumor localization, with favorable image quality and more reliable morphologic visualization of the facial nerve.
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Affiliation(s)
- Xiaoxue Fan
- From the Department of Radiology (X.F., C.D., G.Z., Y.H.), Shengjing Hospital of China Medical University, Shenyang, China
| | - Changwei Ding
- From the Department of Radiology (X.F., C.D., G.Z., Y.H.), Shengjing Hospital of China Medical University, Shenyang, China
| | - Guyue Zhao
- From the Department of Radiology (X.F., C.D., G.Z., Y.H.), Shengjing Hospital of China Medical University, Shenyang, China
| | - Yang Hou
- From the Department of Radiology (X.F., C.D., G.Z., Y.H.), Shengjing Hospital of China Medical University, Shenyang, China
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Li R, Zheng Z, Yang L, Li S, Qin S, Xu S, Wu C, Wang W. Development of a Machine Learning Algorithm to Forecast the Likelihood of Postoperative Neurological Complications in Patients With Parotid Tumors. EAR, NOSE & THROAT JOURNAL 2024:1455613241258648. [PMID: 38804648 DOI: 10.1177/01455613241258648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024] Open
Abstract
Objective: The objective of this study was to create and verify a machine learning-driven predictive model to forecast the likelihood of facial nerve impairment in patients with parotid tumors following surgery. Methods: We retrospectively collected data from patients with parotid tumors between 2013 and 2023 to develop a prediction model for postoperative facial nerve dysfunction using 5 ML techniques: Logistic Regression (Logit), Random Forest (RF), XGBoost (XGB), Artificial Neural Network (ANN), and Support Vector Machine (SVM). Predictor variables were screened using binomial-LASSO regression. Results: The study had a total of 403 participants, out of which 56 individuals encountered facial nerve damage after the surgery. By employing binomial-LASSO regression, we have successfully identified 8 crucial predictive variables: tumor kind, tumor pain, surgeon's experience, tumor volume, basophil percentage, red blood cell count, partial thromboplastin time, and prothrombin time. The models utilizing ANN and Logit achieved higher area under the curve (AUC) values, namely 0.829, which was significantly better than the SVM model that had an AUC of 0.724. There were no noticeable disparities in the AUC values between the ANN and Logit models, as well as between these models and other techniques like RF and XGB. Conclusion: Using machine learning, our prediction model accurately predicts the likelihood that patients with parotid tumors may experience facial nerve damage following surgery. By using this model, doctors can assess patients' risks more accurately before to surgery, and it may also help optimize postoperative treatment techniques. It is anticipated that this tool would enhance patients' quality of life and therapeutic outcomes.
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Affiliation(s)
- Ruilin Li
- Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Zhanhang Zheng
- Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Lianzhao Yang
- Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Shuimei Li
- Guigang City People's Hospital, Guigang, Guangxi, China
| | - Shuhong Qin
- Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Sujuan Xu
- Guigang City People's Hospital, Guigang, Guangxi, China
| | - Chenxingzi Wu
- Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Wenjuan Wang
- Guangxi University of Chinese Medicine, Nanning, Guangxi, China
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Mortensen NB, Bjørndal K. The risk of facial nerve palsy after benign parotidectomy. A quality project. Acta Otolaryngol 2024; 144:250-254. [PMID: 38634637 DOI: 10.1080/00016489.2024.2336557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Accepted: 03/25/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND Facial nerve palsy is a potential complication of parotidectomy for benign salivary gland tumours, necessitating a comprehensive understanding of its incidence and associated risk factors for improved patient counselling and preoperative planning. AIM/OBJECTIVES This single-centre retrospective study aimed to assess the rate of facial nerve palsy following benign parotidectomy at a University Teaching Hospital. MATERIAL AND METHODS Over a 3-year period, 160 patients undergoing parotid surgery for benign tumours were included. Data, encompassing sex, age, operation technique, tumour pathology, facial nerve function, and follow-up duration, were collected from medical records. Exclusion criteria comprised patients with prior parotid gland surgery or preoperative facial nerve palsy. RESULTS The study revealed a 3.75% incidence of facial nerve palsy with no total paralysis post-parotidectomy for benign disease. Pleomorphic adenoma (50.6%) and Warthin's tumour (44.4%) were the predominant tumour types. No significant differences were noted between groups with and without postoperative facial palsy based on obtained covariates. CONCLUSION AND SIGNIFICANCE Our findings endorse partial superficial parotidectomy and extracapsular dissection as low-risk treatments for benign parotid tumours. However, prospective studies are warranted to elucidate recovery rates and long-term consequences of facial nerve palsy, contributing to refined surgical approaches and patient care in parotid surgery.
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Affiliation(s)
- Nicoline Bebe Mortensen
- Department of Otorhinolaryngology, Head and Neck Surgery and Audiology, Odense University Hospital, Odense, Denmark
- OPEN, Open Patient data Explorative Network, Odense University Hospital, Odense, Denmark
| | - Kristine Bjørndal
- Department of Otorhinolaryngology, Head and Neck Surgery and Audiology, Odense University Hospital, Odense, Denmark
- OPEN, Open Patient data Explorative Network, Odense University Hospital, Odense, Denmark
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Kinoshita I, Kawata R, Higashino M, Terada T, Haginomori SI, Tochizawa T. Tumor localization is the important factor for recovery time of postoperative facial nerve paralysis in benign parotid surgery. Auris Nasus Larynx 2024; 51:214-220. [PMID: 37482432 DOI: 10.1016/j.anl.2023.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/22/2023] [Accepted: 07/13/2023] [Indexed: 07/25/2023]
Abstract
OBJECTIVE Facial nerve paralysis is the most problematic complication of surgery for parotid tumors. This study aimed to examine the progress of recovery from postoperative transient facial nerve paralysis (POFNP). METHODS Participants were 203 patients who developed POFNP after benign parotid surgery. A Kaplan-Meier showed the progress of recovery from paralysis. Factors involved in recovery were examined. For factors for which a significant difference was found, recovery from paralysis was examined over time. RESULTS Rates of recovery from paralysis were as follows: 28.6% of patients at 1 month, 58.3% at 3 months, 85.9% at 6 months, and 95.1% at 12 months after surgery. Deep lobe tumors were shown to be significantly associated with delayed recovery from paralysis. The relationship between tumor location and the time of recovery from was that deep lobe tumors had a significantly worse recovery from paralysis at 4 and 5 months after surgery. CONCLUSION Patients who develop POFNP must be informed about the progress of recovery and factors involved in recovery from paralysis. We believe that the results of the present study are a useful reference to that end.
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Affiliation(s)
- Ichita Kinoshita
- Department of Otorhinolaryngology - Head and Neck Surgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
| | - Ryo Kawata
- Department of Otorhinolaryngology - Head and Neck Surgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan
| | - Masaaki Higashino
- Department of Otorhinolaryngology - Head and Neck Surgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan
| | - Tetsuya Terada
- Department of Otorhinolaryngology - Head and Neck Surgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan
| | - Shin-Ichi Haginomori
- Department of Otorhinolaryngology - Head and Neck Surgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan
| | - Takeshi Tochizawa
- Institutional Research Office, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan
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Wang X, Liu L, He H, Li B. MAML2 gene rearrangement occurs in all Warthin-like mucoepidermoid carcinoma: A reappraisal in a series of 29 cases. Heliyon 2024; 10:e24873. [PMID: 38304779 PMCID: PMC10831721 DOI: 10.1016/j.heliyon.2024.e24873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 01/08/2024] [Accepted: 01/16/2024] [Indexed: 02/03/2024] Open
Abstract
Background Warthin-like Mucoepidermoid carcinoma (MEC) is a new and rare morphological variant of MEC, with only a few case reports in the literature. The clinicopathological, molecular features and bio-behaviors of Warthin-like MEC has not been studied extensively. We reappraisal all Warthin-like MEC patients diagnosed and treated at our hospital. Methods Patient characteristics including clinicopathological features, genetic aberrations, treatment, and prognostic information were assessed and evaluated. Results Twenty-nine Warthin-like MEC patients were identified, 19 patients were female (65.5 %), and 10 were male (34.5 %). The patients' age varied widely from 8 to 68 years (mean 42.3 years). Genetic aberrations of MAML2 rearrangement were detected in all Warthin-like MEC patients, which suggesting this genetic event is the unique feature of Warthin-like MEC. Twenty-five patients (86.2 %) were assessed as having a low-stage disease (I/II), and four (13.8 %) as having high-clinical stage disease (III/IV). More than half of the patients (16/29) underwent only partial sialoadenectomy; 2 patients underwent extended sialoadenectomy, and 11 patients underwent extended sialoadenectomy with cervical lymph node dissection. After a median follow-up time of 73 months (5-128 months), Twenty-eight patients were alive without recurrence at the end of the follow-up period, one patient died 1 year after surgery due to lung metastasis. Conclusion Our data suggested that most Warthin-like MEC exhibited mild clinicopathological course and less aggressive bio-behavior, and an aggressive bio-behavior seemed to be very rare. In addition, in the salivary gland, MAML2 rearrangement seems to be a unique molecular feature of salivary Warthin-like MEC.
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Affiliation(s)
- Xi Wang
- Department of Oral Pathology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, 100081, China
- Research Unit of Precision Pathologic Diagnosis in Tumors of the Oral and Maxillofacial Regions, Chinese Academy of Medical Sciences(2019RU034), China
| | - Lingchao Liu
- Department of Pathology, School of Basic Medical Sciences, Third Hospital, Peking University Health Science Center, Beijing, China
| | - Huiying He
- Department of Pathology, School of Basic Medical Sciences, Third Hospital, Peking University Health Science Center, Beijing, China
| | - Binbin Li
- Department of Oral Pathology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, 100081, China
- Research Unit of Precision Pathologic Diagnosis in Tumors of the Oral and Maxillofacial Regions, Chinese Academy of Medical Sciences(2019RU034), China
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Sun J, Cao W, Pan S, He L, Ji D, Zheng N, Sun X, Wang R, Niu Y. Porous Organic Materials in Tissue Engineering: Recent Advances and Applications for Severed Facial Nerve Injury Repair. Molecules 2024; 29:566. [PMID: 38338311 PMCID: PMC10856494 DOI: 10.3390/molecules29030566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/08/2024] [Accepted: 01/10/2024] [Indexed: 02/12/2024] Open
Abstract
The prevalence of facial nerve injury is substantial, and the restoration of its structure and function remains a significant challenge. Autologous nerve transplantation is a common treatment for severed facial nerve injury; however, it has great limitations. Therefore, there is an urgent need for clinical repair methods that can rival it. Tissue engineering nerve conduits are usually composed of scaffolds, cells and neurofactors. Tissue engineering is regarded as a promising method for facial nerve regeneration. Among different factors, the porous nerve conduit made of organic materials, which has high porosity and biocompatibility, plays an indispensable role. This review introduces facial nerve injury and the existing treatment methods and discusses the necessity of the application of porous nerve conduit. We focus on the application of porous organic polymer materials from production technology and material classification and summarize the necessity and research progress of these in repairing severed facial nerve injury, which is relatively rare in the existing articles. This review provides a theoretical basis for further research into and clinical interventions on facial nerve injury and has certain guiding significance for the development of new materials.
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Affiliation(s)
- Jingxuan Sun
- The First Affiliated Hospital of Harbin Medical University, School of Stomatology, Harbin Medical University, Harbin 150001, China; (J.S.); (S.P.); (L.H.); (X.S.)
| | - Wenxin Cao
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, China; (W.C.); (D.J.)
- Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou 450000, China
| | - Shuang Pan
- The First Affiliated Hospital of Harbin Medical University, School of Stomatology, Harbin Medical University, Harbin 150001, China; (J.S.); (S.P.); (L.H.); (X.S.)
| | - Lina He
- The First Affiliated Hospital of Harbin Medical University, School of Stomatology, Harbin Medical University, Harbin 150001, China; (J.S.); (S.P.); (L.H.); (X.S.)
| | - Dongchao Ji
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, China; (W.C.); (D.J.)
| | - Nannan Zheng
- Key Laboratory of Micro-Systems and Micro-Structures Manufacturing (Ministry of Education), School of Medicine and Health, Harbin Institute of Technology, Harbin 150001, China;
| | - Xiangyu Sun
- The First Affiliated Hospital of Harbin Medical University, School of Stomatology, Harbin Medical University, Harbin 150001, China; (J.S.); (S.P.); (L.H.); (X.S.)
| | - Ranxu Wang
- The First Affiliated Hospital of Harbin Medical University, School of Stomatology, Harbin Medical University, Harbin 150001, China; (J.S.); (S.P.); (L.H.); (X.S.)
| | - Yumei Niu
- The First Affiliated Hospital of Harbin Medical University, School of Stomatology, Harbin Medical University, Harbin 150001, China; (J.S.); (S.P.); (L.H.); (X.S.)
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Jinnin T, Futaki S, Hirata A, Kuwabara H, Higashino M, Kondo Y, Kawata R. Facial nerve dissection in parotid surgery: a microscopic investigation study. Anat Sci Int 2024; 99:90-97. [PMID: 37530927 DOI: 10.1007/s12565-023-00737-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 07/24/2023] [Indexed: 08/03/2023]
Abstract
In parotid surgery, it is crucial to identify and preserve the facial nerve, which runs through the parotid gland. The purpose of this study was to histologically clarify two clinical questions: whether "superficial" and "deep" lobes exist anatomically and what are the structures surrounding facial nerve. Parotid gland tissues were obtained from dissection of donated cadavers. The gland was cut perpendicular to the facial nerve plane at 5 mm intervals, and the pieces were embedded in paraffin, thinly sliced, and stained. The morphology of the nerve was observed at each site, and the relationships between the thickness of the perineural tissue (defined as the tissue between the groups of nerve fasciculi and the glandular parenchyma), nerve diameter, and distance from the proximal end of the nerve were examined. In addition, the dissection layer was examined histologically in isolated parotid tissues. The interlobular connective tissue was spread like a mesh within the parotid gland and subdivided the glandular parenchyma. The facial nerve was located in the interlobular connective tissue, and its course was not restricted to the boundary plane between the superficial and deep lobes. The thickness of the perineural tissue decreased with increasing distance from the proximal end of the nerve. The dissection layer was clarified that located in the perineural tissue. The perineural tissue is thinner in more distal regions, which may make dissection more difficult there. No particular anatomical structure appears to separate the superficial and deep lobes.
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Affiliation(s)
- Tsuyoshi Jinnin
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical Pharmaceutical University, 2-7 Daigaku-machi, Takatsuki, Osaka, 569-8686, Japan.
| | - Sugiko Futaki
- Department of Anatomy and Cell Biology, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan
| | - Azumi Hirata
- Department of Anatomy and Cell Biology, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan
| | - Hiroko Kuwabara
- Department of Pathology, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan
| | - Masaaki Higashino
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical Pharmaceutical University, 2-7 Daigaku-machi, Takatsuki, Osaka, 569-8686, Japan
| | - Yoichi Kondo
- Department of Anatomy and Cell Biology, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan
| | - Ryo Kawata
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical Pharmaceutical University, 2-7 Daigaku-machi, Takatsuki, Osaka, 569-8686, Japan
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Targino da Costa MGES, Maranhão-Filho PDA, Santos IC, Luiz RR. Post-parotidectomy facial nerve rehabilitation outcomes: Comparison between benign and malignant neoplasms. NeuroRehabilitation 2024; 54:259-273. [PMID: 38306064 DOI: 10.3233/nre-230220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
BACKGROUND Facial nerve dysfunction can be a devastating trouble for post-parotidectomy patients. OBJECTIVE To assess rehabilitation outcomes concerning patients with post-parotidectomy facial nerve dysfunction, comparing benign versus malignant neoplasms. METHODS Prospective study enrolling adults who underwent parotidectomy with facial nerve sparing between 2016 and 2020. The Modified Sunnybrook System (mS-FGS) was used for facial assessments. Physiotherapy began on the first post-operative day with a tailored program of facial exercises based on Neuromuscular Retraining, to be performed at home 3 times/day. From the first outpatient consultation, Proprioceptive Neuromuscular Facilitation was added to the treatment of cases with moderate or severe facial dysfunctions. RESULTS Benign and malignant groups had a statistically significant improvement in mS-FGS (p < 0.001 and p = 0.005, respectively). There was no significant difference between groups regarding treatment duration or number of physiotherapy sessions performed. The history of previous parotidectomy resulted in more severe initial dysfunctions and worse outcome. Age over 60 years and initially more severe dysfunctions impacted the outcome. CONCLUSION Patients with benign and malignant parotid neoplasms had significant and equivalent improvement in postoperative facial dysfunction following an early tailored physiotherapy program, with no significant difference in the final facial score, treatment duration, or number of sessions required.
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Affiliation(s)
| | - Péricles de Andrade Maranhão-Filho
- Department of Neurology, University Hospital Clementino Fraga Filho, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Izabella Costa Santos
- Department of Head and Neck Surgery, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil
| | - Ronir Raggio Luiz
- Institute for Studies in Public Health (IESC), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
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Nishimura H, Kawata R, Kinoshita I, Higashino M, Terada T, Haginomori SI, Tochizawa T. Proposal for a novel classification of benign parotid tumors based on localization. Auris Nasus Larynx 2023:S0385-8146(23)00030-5. [PMID: 36754685 DOI: 10.1016/j.anl.2023.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/21/2022] [Accepted: 01/24/2023] [Indexed: 02/08/2023]
Abstract
OBJECTIVE Postoperative facial nerve paralysis is the most problematic complication after surgical treatment of parotid tumors. Localization of tumors is highly relevant for the surgical approach, but existing classification systems do not focus on the association between localization and surgical technique. Therefore, we created a new localization-based classification system for benign parotid tumors and investigated the characteristics of tumors in each localization and the frequency of postoperative facial nerve paralysis by retrospectively applying the classification to previous cases. METHODS First, we defined 6 portions of the parotid gland (upper, U; lower, L; posterior, P; anterior, A; superficial, S; deep, D) by dividing the transverse plane into an upper and lower portion at the mandibular marginal branch, the longitudinal plane into a posterior and anterior portion at the midline of the parotid anteroposterior diameter, and the sagittal plane into a superficial and deep portion along the course of the facial nerve. Then, we defined 8 locations by combining the 6 portions in all possible ways (i.e., U-P-S, U-P-D, U-A-S, U-A-D, L-P-S, L-P-D, L-A-S, L-A-D). We used this classification to define the tumor localization in 948 patients who had undergone partial superficial parotidectomy for benign parotid tumors and then investigated the incidence, histopathological type, signs/symptoms, diagnosis, surgery, and complications in each area. RESULTS Pleomorphic adenomas comprised approximately 70% of tumors in the upper portion but only approximately 35% in the lower portion. The rate of postoperative facial nerve paralysis was significantly higher for tumors in deep locations than in superficial locations (33.9% vs 14.9%, respectively), and the odds ratios for postoperative facial nerve paralysis in the U-P-D and U-A-D locations were 7.6 and 4.8 compared to the L-P-S location. When maximum diameter, operation time, bleeding volume, sex (reference: female), and age were added as control variables, the odds ratios were 4.2 and 3.0. CONCLUSION Determining tumor localization preoperatively with the new localization-based classification of parotid tumors is helpful not only for predicting the histopathological type but also for predicting surgical complications, particularly postoperative facial nerve paralysis.
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Affiliation(s)
- Hiromi Nishimura
- Department of Otorhinolaryngology - Head and Neck Surgery, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-machi, Takatsuki 569-8686, Japan
| | - Ryo Kawata
- Department of Otorhinolaryngology - Head and Neck Surgery, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-machi, Takatsuki 569-8686, Japan.
| | - Ichita Kinoshita
- Department of Otorhinolaryngology - Head and Neck Surgery, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-machi, Takatsuki 569-8686, Japan
| | - Masaaki Higashino
- Department of Otorhinolaryngology - Head and Neck Surgery, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-machi, Takatsuki 569-8686, Japan
| | - Tetsuya Terada
- Department of Otorhinolaryngology - Head and Neck Surgery, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-machi, Takatsuki 569-8686, Japan
| | - Shin-Ichi Haginomori
- Department of Otorhinolaryngology - Head and Neck Surgery, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-machi, Takatsuki 569-8686, Japan
| | - Takeshi Tochizawa
- Institutional Research Office, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
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Role of Intra-Parotid Lymph Node Metastasis in Primary Parotid Carcinoma. LIFE (BASEL, SWITZERLAND) 2022; 12:life12122053. [PMID: 36556418 PMCID: PMC9781477 DOI: 10.3390/life12122053] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022]
Abstract
The parotid gland contains intra-glandular lymph nodes, the distribution of which is crucial for understanding the pathogenesis of intra-parotid lymph node metastases of parotid carcinoma and other head and neck carcinomas. Positive intra-parotid lymph node metastasis predicts the risk of positive cervical nodal metastasis. It is important to establish whether prophylactic neck dissection, including intra-parotid lymph nodes, contributes to treatment outcomes. The presence or absence of intra-parotid lymph nodes or metastasis-positive lymph nodes warrants further study. A preoperative diagnosis by imaging and fine-needle aspiration cytology of intra-parotid lymph nodes is difficult. Although intraoperative frozen section biopsy is performed during surgery, it is challenging to identify intra-parotid lymph nodes. The number of lymph nodes was the largest (47%) in the lower half of the superficial lobe, with 35% of nodes being concentrated in the inferior part of the cervicofacial branch, i.e., the lower pole of the parotid gland. Therefore, superficial parotidectomy and lower pole lobectomy need to be performed in cases in which a malignant tumor localizes to the superficial lobe or a lower pole. When intra-parotid lymph node metastases are detected during surgery, selective neck dissection (at least levels II and III) needs to be simultaneously performed.
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Taniuchi M, Terada T, Kawata R. Fine-Needle Aspiration Cytology for Parotid Tumors. LIFE (BASEL, SWITZERLAND) 2022; 12:life12111897. [PMID: 36431032 PMCID: PMC9693155 DOI: 10.3390/life12111897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/12/2022] [Accepted: 11/14/2022] [Indexed: 11/17/2022]
Abstract
Fine-needle aspiration (FNA) cytology is widely used in clinical practice as a simple and minimally invasive test for parotid tumors that allows for preoperative estimation of benignancy and malignancy, histological type, and malignancy grade and can be performed on an outpatient basis. In recent years, cell blocks prepared with core needle biopsy (CNB) and liquid-based cytology (LBC) have increased the reliability of immunostaining and molecular biological testing, leading to improved diagnostic accuracy. In 2018, the Milan System for Reporting Salivary Gland Cytology was introduced, but it does not include malignancy grade or histological type, so we proposed the Osaka Medical College classification as a more clinically based cell classification that includes both types of information, and we have reported on its usefulness. This review gives an overview of the history and use of FNA and describes CNB and LBC and the two classification systems.
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Suzuki S, Bandoh N, Goto T, Kubota A, Uemura A, Kono M, Sato R, Takeda R, Sakaue S, Yamaguchi-Isochi T, Nishihara H, Takei H, Harabuchi Y. A retrospective study of parotid gland tumors at a single institution. Oncol Lett 2022; 24:207. [PMID: 35720490 PMCID: PMC9178697 DOI: 10.3892/ol.2022.13328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 04/06/2022] [Indexed: 11/13/2022] Open
Abstract
The aim of the present study was to analyze the clinical characteristics, surgical treatments and clinical outcome of patients with parotid gland tumors and to compare the results with those cited in the literature. A retrospective study was conducted in 140 patients (male, n=77; female, n=63) with parotid gland tumors who underwent parotidectomy at Hokuto Hospital Department of Otolaryngology-Head and Neck Surgery (Obihiro, Japan) between April 2007 and December 2021. Of the 140 patients enrolled, 118 (84.3%) patients had benign tumors, including 63 (45%) patients with pleomorphic adenomas and 43 (30.7%) patients with Warthin tumors, and 22 patients (15.7%) had parotid carcinoma. Comparison of the three groups of patients with parotid gland tumors indicated that pack years as an indicator of smoking status were significantly higher in patients with Warthin tumors than in those with parotid carcinomas (P=0.011) or pleomorphic adenoma (P<0.001). Fine-needle aspiration cytology (FNAC) was non-diagnostic for only 6 (4.3%) of 140 patients. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of FNAC by both conventional smear and liquid-based cytology (LBC) for parotid carcinomas were 70, 99, 93.3, 94.4 and 82.9%, respectively. Among the 22 patients with parotid carcinoma, extended total/total and superficial parotidectomy were performed in 10 (45%) and 11 (50%) cases, respectively. Total and selective neck dissection of the area from level II to I, II and III were performed in 6 (24%) and 7 (32%) patients, respectively. Postoperative radiotherapy (50 Gy) was performed in 15 (68%) patients. The overall survival (OS) and disease-free survival (DFS) rates at 5 years were 51.5 and 76.4%, respectively. Univariate analysis revealed that age >65 years was significantly associated with poorer 5-year OS (P<0.001) and DFS (P<0.001). Multivariate analysis revealed that an age of more than 65 years combined with high-grade histologic malignancy was associated with worse DFS (P=0.02; hazard ratio, 3.628; 95% confidence interval, 1.283-9.514). In conclusion, the clinical characteristics and treatment outcomes of parotid gland tumors were consistent with the results of previous reports. Smoking may be closely related to the pathogenesis of Warthin tumors. LBC potentially provides improved accuracy in FNAC.
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Affiliation(s)
- Shiori Suzuki
- Department of Otolaryngology-Head and Neck Surgery, Hokuto Hospital, Obihiro, Hokkaido 080-0833, Japan.,Department of Otolaryngology-Head and Neck Surgery, Asahikawa Medical University, Asahikawa, Hokkaido 078-8510, Japan
| | - Nobuyuki Bandoh
- Department of Otolaryngology-Head and Neck Surgery, Hokuto Hospital, Obihiro, Hokkaido 080-0833, Japan
| | - Takashi Goto
- Department of Otolaryngology-Head and Neck Surgery, Hokuto Hospital, Obihiro, Hokkaido 080-0833, Japan
| | - Akinobu Kubota
- Department of Otolaryngology-Head and Neck Surgery, Hokuto Hospital, Obihiro, Hokkaido 080-0833, Japan.,Department of Otolaryngology-Head and Neck Surgery, Asahikawa Medical University, Asahikawa, Hokkaido 078-8510, Japan
| | - Akihiro Uemura
- Department of Otolaryngology-Head and Neck Surgery, Hokuto Hospital, Obihiro, Hokkaido 080-0833, Japan
| | - Michihisa Kono
- Department of Otolaryngology-Head and Neck Surgery, Hokuto Hospital, Obihiro, Hokkaido 080-0833, Japan.,Department of Otolaryngology-Head and Neck Surgery, Asahikawa Medical University, Asahikawa, Hokkaido 078-8510, Japan
| | - Ryosuke Sato
- Department of Otolaryngology-Head and Neck Surgery, Hokuto Hospital, Obihiro, Hokkaido 080-0833, Japan.,Department of Otolaryngology-Head and Neck Surgery, Asahikawa Medical University, Asahikawa, Hokkaido 078-8510, Japan
| | - Ryuhei Takeda
- Department of Otolaryngology-Head and Neck Surgery, Hokuto Hospital, Obihiro, Hokkaido 080-0833, Japan.,Department of Otolaryngology-Head and Neck Surgery, Asahikawa Medical University, Asahikawa, Hokkaido 078-8510, Japan
| | - Shota Sakaue
- Department of Otolaryngology-Head and Neck Surgery, Hokuto Hospital, Obihiro, Hokkaido 080-0833, Japan.,Department of Otolaryngology-Head and Neck Surgery, Asahikawa Medical University, Asahikawa, Hokkaido 078-8510, Japan
| | | | - Hiroshi Nishihara
- Genomics Unit, Keio Cancer Center, Keio University School of Medicine, Shinjukuku, Tokyo 160-8582, Japan
| | - Hidehiro Takei
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center at Shreveport, Shreveport, LA 71103, USA
| | - Yasuaki Harabuchi
- Department of Otolaryngology-Head and Neck Surgery, Hokuto Hospital, Obihiro, Hokkaido 080-0833, Japan.,Department of Otolaryngology-Head and Neck Surgery, Asahikawa Medical University, Asahikawa, Hokkaido 078-8510, Japan
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Nishimura H, Kawata R, Kinoshita I, Higashino M, Terada T, Haginomori SI, Tochizawa T. Management for Warthin Tumor of the Parotid Gland: Surgery or Observation. A 21-Year Retrospective Study of 387 Cases. EAR, NOSE & THROAT JOURNAL 2022:1455613221080927. [PMID: 35393868 DOI: 10.1177/01455613221080927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
PURPOSE This study investigated the characteristics, diagnosis, and treatment of Warthin tumors (WTs) to explore the possibility of managing patients by observation. METHODS We reviewed the records of 1167 patients with benign parotid tumors who were seen in our department between September 1999 and April 2021. Among them, 387 cases were WT and 668 cases were pleomorphic adenoma. We evaluated preoperative diagnoses of WT by symptoms/signs, fine-needle aspiration cytology (FNAC), imaging, such as ultrasonography and magnetic resonance imaging, and technetium-99m pertechnetate (Tc-99m) scintigraphy. Fisher's exact test and the Mann-Whitney U test were used in statistical analyses. RESULTS Warthin tumors were treated by surgery in 238 cases and follow-up in 149 cases. The 238 patients were diagnosed as WT at the final pathology after surgery. Among them, 172 patients (72.3%) were determined as benign histological type by preoperative FNAC; in these 172 patients, 170 (71.4%) were correctly diagnosed as WT in the final pathology. Preoperative Tc-99m scintigraphy was performed in 69 patients diagnosed with WT by final pathology or FNAC, and the positive rate of Tc-99m scintigraphy in WT was 75.4%. CONCLUSIONS Combining FNAC and Tc-99m scintigraphy, as well as considering clinical findings, enables the diagnosis of WT in most cases. In particular, WT is more common in the elderly, grows more slowly, and is less likely to be malignant. Therefore, if WT can be diagnosed preoperatively with a high rate of correct diagnosis, it could be an accurate and effective means of managing patients through follow-up without surgery.
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Affiliation(s)
- Hiromi Nishimura
- Department of Otorhinolaryngology - Head and Neck Surgery, 13010Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan
| | - Ryo Kawata
- Department of Otorhinolaryngology - Head and Neck Surgery, 13010Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan
| | - Ichita Kinoshita
- Department of Otorhinolaryngology - Head and Neck Surgery, 13010Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan
| | - Masaaki Higashino
- Department of Otorhinolaryngology - Head and Neck Surgery, 13010Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan
| | - Tetsuya Terada
- Department of Otorhinolaryngology - Head and Neck Surgery, 13010Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan
| | - Shin-Ichi Haginomori
- Department of Otorhinolaryngology - Head and Neck Surgery, 13010Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan
| | - Takeshi Tochizawa
- Institutional Research Office, 13010Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan
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14
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Tretiakow D, Skorek A, Łapińska I. Regarding the "The spiral ladder technique of facial nerve trunk identification during parotidectomy: A convenient roadmap for the beginners". Oral Oncol 2021; 125:105695. [PMID: 34971881 DOI: 10.1016/j.oraloncology.2021.105695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 11/28/2022]
Affiliation(s)
- Dmitry Tretiakow
- Department of Otolaryngology with Maxillofacial Surgery Unit, University Clinical Center in Gdańsk, Poland; Department of Otolaryngology, Faculty of Medicine, Medical University of Gdańsk, Poland.
| | - Andrzej Skorek
- Department of Otolaryngology with Maxillofacial Surgery Unit, University Clinical Center in Gdańsk, Poland; Department of Otolaryngology, Faculty of Medicine, Medical University of Gdańsk, Poland
| | - Iwona Łapińska
- Department of Otolaryngology with Maxillofacial Surgery Unit, University Clinical Center in Gdańsk, Poland
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Kawata R, Kinoshita I, Omura S, Higashino M, Nishikawa S, Terada T, Haginomori SI, Kurisu Y, Hirose Y, Tochizawa T. In Response to Risk Factors of Postoperative Facial Palsy for Benign Parotid Tumors: Outcome of 1,018 Patients. Laryngoscope 2021; 132:E10. [PMID: 34581440 DOI: 10.1002/lary.29883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 09/04/2021] [Indexed: 11/06/2022]
Affiliation(s)
- Ryo Kawata
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical College, Takatsuki, Japan
| | - Ichita Kinoshita
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical College, Takatsuki, Japan
| | - Shuji Omura
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical College, Takatsuki, Japan
| | - Masaaki Higashino
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical College, Takatsuki, Japan
| | - Shuji Nishikawa
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical College, Takatsuki, Japan
| | - Tetsuya Terada
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical College, Takatsuki, Japan
| | - Shin-Ichi Haginomori
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical College, Takatsuki, Japan
| | - Yoshitaka Kurisu
- Department of Pathology, Osaka Medical College, Takatsuki, Japan
| | - Yoshinobu Hirose
- Department of Pathology, Osaka Medical College, Takatsuki, Japan
| | - Takeshi Tochizawa
- Department of Institutional Research, Institutional Research Office, Osaka Medical College, Takatsuki, Japan
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