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Tang Y, Zhu Q, Yang L, Meng Y, Zhang G, Zhou T, Wang C, Song X, Su YX, Ye J. MiR-200b-5p inhibits tumor progression in salivary adenoid cystic carcinoma via targeting BTBD1. Cell Signal 2023:110748. [PMID: 37290676 DOI: 10.1016/j.cellsig.2023.110748] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/27/2023] [Accepted: 05/31/2023] [Indexed: 06/10/2023]
Abstract
Salivary adenoid cystic carcinoma (SACC) is a rare malignant tumor of the salivary gland. Studies have suggested that miRNA may play a crucial role in the invasion and metastasis of SACC. This study aimed to investigate the role of miR-200b-5p in SACC progression. Reverse transcription-quantitative PCR and western blot assay were used to detect the expression levels of miR-200b-5p and BTBD1. The biological functions of miR-200b-5p were evaluated via wound-healing assays, transwell assays, and xenograft nude mice model. The interaction between miR-200b-5p and BTBD1 was assessed using luciferase assay. Results showed that miR-200b-5p was downregulated in the SACC tissues while BTBD1 was upregulated. miR-200b-5p overexpression suppressed SACC cell proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT). Bioinformatics prediction and luciferase reporter assay revealed that miR-200b-5p could directly bind to BTBD1. Besides, miR-200b-5p overexpression could rescue the tumor-promoting effect of BTBD1. miR-200b-5p inhibited tumor progression by modulating EMT-related proteins, targeting BTBD1 and inhibiting PI3K/AKT signaling pathway. Overall, our findings indicate that miR-200b-5p can suppress SACC proliferation, migration, invasion, and EMT by regulating BTBD1 and PI3K/AKT axis, providing a promising therapeutic target for SACC treatment.
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Affiliation(s)
- Yuting Tang
- Jiangsu Key Laboratory of Oral Disease, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing 210029, China; Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Qinghai Zhu
- Jiangsu Key Laboratory of Oral Disease, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing 210029, China; Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Li Yang
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Ying Meng
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Gao Zhang
- Division of Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong 999077, China
| | - Tian Zhou
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Chenxing Wang
- Jiangsu Key Laboratory of Oral Disease, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing 210029, China; Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Xiaomeng Song
- Jiangsu Key Laboratory of Oral Disease, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing 210029, China; Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Yu-Xiong Su
- Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong 999077, SAR, China.
| | - Jinhai Ye
- Jiangsu Key Laboratory of Oral Disease, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing 210029, China; Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China.
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2
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Zupancic M, Näsman A, Berglund A, Dalianis T, Friesland S. Adenoid Cystic Carcinoma (AdCC): A Clinical Survey of a Large Patient Cohort. Cancers (Basel) 2023; 15:cancers15051499. [PMID: 36900288 PMCID: PMC10000643 DOI: 10.3390/cancers15051499] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/23/2023] [Accepted: 02/24/2023] [Indexed: 03/04/2023] Open
Abstract
Adenoid cystic carcinoma (AdCC), a rare heterogenous disease, presents diagnostic, prognostic, and therapeutic challenges. To obtain more knowledge, we conducted a retrospective study on a cohort of 155 patients diagnosed in 2000-2022 with AdCC of the head and neck in Stockholm and investigated several clinical parameters in correlation to treatment and prognosis in the 142/155 patients treated with curative intent. The strongest favourable prognostic factors were early disease stage (stage I and II) as compared to late disease (stage III and IV) and major salivary gland subsite as compared to other subsites, with the best prognosis in the parotid gland, irrespective of the stage of the disease. Notably, in contrast to some studies, a significant correlation to survival was not found for perineural invasion or radical surgery. However, similar to others, we confirmed that other common prognostic factors, e.g., smoking, age, and gender, did not correlate to survival and should not be used for prognostication of AdCC of the head and neck. To conclude, in AdCC early disease stage, major salivary gland subsite and multimodal treatment were the strongest favourable prognostic factors, while this was not the case for age, gender and smoking nor perineural invasion and radical surgery.
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Affiliation(s)
- Mark Zupancic
- Department of Oncology-Pathology, Karolinska Institutet, 171 64 Stockholm, Sweden
- Department of Head-, Neck-, Lung- and Skin Cancer, Theme Cancer, Karolinska University Hospital, 171 64 Stockholm, Sweden
| | - Anders Näsman
- Department of Oncology-Pathology, Karolinska Institutet, 171 64 Stockholm, Sweden
- Department of Clinical Pathology, Karolinska University Hospital, 171 76 Stockholm, Sweden
| | | | - Tina Dalianis
- Department of Oncology-Pathology, Karolinska Institutet, 171 64 Stockholm, Sweden
- Correspondence: (T.D.); (S.F.)
| | - Signe Friesland
- Department of Oncology-Pathology, Karolinska Institutet, 171 64 Stockholm, Sweden
- Department of Head-, Neck-, Lung- and Skin Cancer, Theme Cancer, Karolinska University Hospital, 171 64 Stockholm, Sweden
- Correspondence: (T.D.); (S.F.)
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Occult Neck Metastases in Head and Neck Adenoid Cystic Carcinoma: A Systematic Review and Meta-Analysis. J Clin Med 2022; 11:jcm11164924. [PMID: 36013166 PMCID: PMC9410011 DOI: 10.3390/jcm11164924] [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: 05/26/2022] [Revised: 06/24/2022] [Accepted: 07/26/2022] [Indexed: 11/16/2022] Open
Abstract
Introduction: Adenoid cystic carcinoma (AdCC) is a rare tumor whose clinical course is burdened by local recurrence and distant dissemination. Lymph node metastasis is not believed to be common and its clinical impact is controversial. The aim of this study was to determine: (1) the prevalence of occult metastasis at diagnosis in cN0 head and neck AdCC, (2) its prognostic role, and (3) the consequent need to perform elective neck dissection (END). Material and Methods: A systematic review and meta-analyses following PRISMA guidelines was performed. PubMed, Embase, and Central databases were questioned up to July 2021 to identify studies reporting on the prevalence of occult neck metastases in head and neck AdCC. A single-arm meta-analysis was then performed to determine the pooled prevalence of occult lymph node metastases among the retained studies. Results: Of the initial 6317 studies identified, 16 fulfilled the inclusion criteria, and they were included in the meta-analysis. Of a population of 7534 patients, 2530 cN0 patients were treated with END, which revealed 290/2530 cases of occult metastases (pN+/cN0). Meta-analysis of the results of END in the 16 studies estimated an overall prevalence of occult metastases at diagnosis of 17%. No further subgroup analysis was possible to identify factors influencing lymph node involvement and the prognostic role of END. Conclusions: Taking 20% as an historically proposed cut off, a 17% prevalence of occult metastases represents a borderline percentage to get a definitive conclusion about the indication to END for head and neck AdCC. A more advanced UICC stage, an oropharyngeal minor salivary glands origin, and a high-grade transformation are factors to be considered in a comprehensive patient’s tailored therapeutic strategy. Multicenter prospective studies are the key to finding stronger recommendations on this topic.
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Wu L, Jiang C, Zhu Z, Sun Y, Zhang T. Prognostic role of PD-L1 expression in patients with salivary gland carcinoma: A systematic review and meta-analysis. PLoS One 2022; 17:e0272080. [PMID: 35881656 PMCID: PMC9321421 DOI: 10.1371/journal.pone.0272080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 07/12/2022] [Indexed: 12/01/2022] Open
Abstract
Background Although programmed cell death-ligand 1 (PD-L1) has been recognized as a potential marker in several cancers, the relationship between PD-L1 expression and survival in patients with salivary gland carcinoma (SGC) has remained unclear. We aimed to evaluate the association of PD-L1 expression with clinicopathological features and prognosis in SGC patients. Methods The databases Ovid Medline, PubMed, Scopus, and EMBASE were searched for relevant studies that detected PD-L1 expression in SGC. The meta-analysis was performed according to the preferred reporting items for systematic reviews and meta-analyses (PRISMA), and the reporting recommendations for tumor marker prognostic studies (REMARK) was used to assess the quality of research eligible for this meta-analysis. Included studies were assessed using the Quality in Prognosis Studies (QUIPS) tool. Odds ratios (ORs) with 95% confidence interval (CI) were calculated to estimate the correlation between PD-L1 expression and clinicopathological features. Hazard ratios (HRs) with 95% CI were applied to assess the association between PD-L1 expression and survival outcomes of patients. Results A total of ten studies (including 952 patients with SGC) were evaluated. The meta-analysis showed that positive PD-L1 expression in SGC was significantly associated with male patients, older age, Tumor stage, lymph node metastasis, high pathological grade, and non-adenoid cystic carcinoma subtype. The pooled data demonstrated that high PD-L1 expression was associated with poor overall survival and disease-free survival. There was no significant correlation between PD-L1 expression and progression-free survival or disease-specific survival of SGC patients. Conclusion According to the meta-analysis, positive PD-L1 expression may play an important role as an effective marker of poor prognosis in patients with SGC. However, large-scale, prospective investigations are still needed to confirm the findings. The assessment of PD-L1 expression may aid in the personalized management of SGC.
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Affiliation(s)
- Limeng Wu
- Department of Stomatology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
| | - Canhua Jiang
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic of China
- Research Center of Oral and Maxillofacial Tumor, Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic of China
| | - Zhihui Zhu
- Department of Stomatology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
| | - Yao Sun
- Department of Radiation Oncology, CyberKnife Center, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, People’s Republic of China
| | - Tao Zhang
- Department of Stomatology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
- * E-mail:
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Dos Santos ES, Rodrigues-Fernandes CI, Speight PM, Khurram SA, Alsanie I, Costa Normando AG, Prado-Ribeiro AC, Brandão TB, Kowalski LP, Silva Guerra EN, Lopes MA, Vargas PA, Santos-Silva AR, Leme AFP. Impact of tumor site on the prognosis of salivary gland neoplasms: A systematic review and meta-analysis. Crit Rev Oncol Hematol 2021; 162:103352. [PMID: 33991662 DOI: 10.1016/j.critrevonc.2021.103352] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 01/28/2021] [Accepted: 05/08/2021] [Indexed: 01/05/2023] Open
Abstract
In numerous types of cancer, the primary tumor site can show a correlation with disease behavior and survival outcomes. In salivary gland tumors (SGTs) this association remains controversial. This study assessed the association between primary sites of SGTs and prognosis. Studies from five databases were assessed and a meta-analysis was performed using studies that presented 95 % confidence interval (95 % CI), hazard ratio (HR) and survival analysis. Gathered information from 46,361 patients showed that site had a prognostic impact on SGTs. Tumors involving minor salivary glands showed worse overall survival (HR = 1.60; 95 % CI = 1.17-2.19; p = 0.003), disease-specific survival (HR=1.63; 95 % CI = 1.12-2.37; p = 0.01), and cause-specific survival (HR=2.10; 95 % CI = 1.72-2.55; p = 0.00001). Tumors from major salivary glands showed better recurrence-free survival (HR=2.31; 95 % CI = 1.77-3.02; p = 0.00001), and locoregional control of disease (HR=2.66; 95 % CI = 1.20-5.91; p = 0.02). Our results showed that the primary site of SGTs has an impact on patient prognosis.
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Affiliation(s)
| | | | - Paul M Speight
- Unit of Oral & Maxillofacial Pathology, School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom
| | - Syed Ali Khurram
- Unit of Oral & Maxillofacial Pathology, School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom
| | - Ibrahim Alsanie
- Unit of Oral & Maxillofacial Pathology, School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom; Department of Oral Medicine and Diagnostic Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | | | - Ana Carolina Prado-Ribeiro
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil; Dental Oncology Service, Instituto do Câncer do Estado de São Paulo (ICESP), São Paulo, Brazil
| | - Thaís Bianca Brandão
- Dental Oncology Service, Instituto do Câncer do Estado de São Paulo (ICESP), São Paulo, Brazil
| | - Luiz Paulo Kowalski
- Head and Neck Surgery Department, University of Sao Paulo Medical School and Department of Head and Neck Surgery and Otorhinolaryngology A C Camargo Cancer Center, São Paulo, Brazil
| | - Eliete Neves Silva Guerra
- Laboratory of Oral Histopathology, School of Health Sciences, University of Brasília, Brasilia, Brazil
| | - Marcio Ajudarte Lopes
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Pablo Agustin Vargas
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Alan Roger Santos-Silva
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Adriana Franco Paes Leme
- Brazilian Bioscience National Laboratory, Brazil Center of Research in Energy and Materials, Campinas, Brazil
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Longo R, Jaud C, Gehin W, Hennequin L, Bastien C, Campitiello M, Rozzi A, Plastino F. Renal Metastases from a Nasal Cavity Mixed Squamous Cell and Adenoid Cystic Carcinoma: A Case Report. AMERICAN JOURNAL OF CASE REPORTS 2020; 21:e919781. [PMID: 31911575 PMCID: PMC6977623 DOI: 10.12659/ajcr.919781] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Patient: Female, 64-year-old Final Diagnosis: Renal metastases from a nasal cavity mixte • squamous cells and adenoid cystic • carcinoma Symptoms: Epistaxis Medication: — Clinical Procedure: — Specialty: Oncology
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Affiliation(s)
- Raffaele Longo
- Division of Medical Oncology, "Centre Hospital Regional (CHR) Metz-Thionville", Ars-Laquenexy, France
| | - Camille Jaud
- Division of Medical Oncology, "Centre Hospital Regional (CHR) Metz-Thionville", Ars-Laquenexy, France
| | - William Gehin
- Division of Medical Oncology, "Centre Hospital Regional (CHR) Metz-Thionville", Ars-Laquenexy, France
| | - Laurent Hennequin
- Division of Radiology, "Centre Hospital Regional (CHR) Metz-Thionville", Ars-Laquenexy, France
| | - Claire Bastien
- Division of Pathology, "Centre Hospital Regional (CHR) Metz-Thionville", Ars-Laquenexy, France
| | - Marco Campitiello
- Division of Medical Oncology, "Centre Hospital Regional (CHR) Metz-Thionville", Ars-Laquenexy, France
| | - Antonio Rozzi
- Division of Medical Oncology, "Centre Hospital Regional (CHR) Metz-Thionville", Ars-Laquenexy, France
| | - Francesca Plastino
- Division of Medical Oncology, "Centre Hospital Regional (CHR) Metz-Thionville", Ars-Laquenexy, France
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Luksic I, Suton P. Elective neck dissection in adenoid cystic carcinoma of head and neck: yes or no? A systematic review. Eur Arch Otorhinolaryngol 2019; 276:2957-2962. [PMID: 31583431 DOI: 10.1007/s00405-019-05669-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 09/23/2019] [Indexed: 12/11/2022]
Abstract
PURPOSE Adenoid cystic carcinoma of head and neck (AdCCHN) is salivary gland malignancy known for its slow progression accompanied with perineural invasion, rare lymphatic spread to the neck, high rate of local recurrence and delayed onset of distant metastases. While local recurrence and distant metastases are most common patterns of relapse and cause of death in AdCCHN, it has been debated whether lymph node involvement affects the course of the disease. The aim of this systematic review was to address this important issue and to recommend guidelines on clinically node-negative neck management in patients with AdCCHN. METHODS A systematic review of the published literature on cases of elective neck dissection (END) among patients with AdCCHN was performed. RESULTS This analysis included a total of 5767 AdCCHN patients with 2450 ENDs, ranging from 10 to 1190. Elective lymphadenectomy was employed in 42.5% of patients with AdCCHN (range 9.2-100%). The overall rate of occult neck metastases in patients with AdCCHN was reported to range between 0 and 43.7%, the average being 13.9%. CONCLUSIONS If performed, END should be limited to levels I-III of the ipsilateral neck since occult metastases are exclusively located within these neck regions. Although END is associated with a prolonged regional recurrence-free period, it influence on final outcome or survival is still controversial. This review strongly supports conduction of prospective trials on indications, prognostic significance and extent of END in AdCCHN.
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Affiliation(s)
- Ivica Luksic
- Department of Maxillofacial Surgery, University Hospital Dubrava, University of Zagreb School of Medicine, Ave. Gojko Susak 6, 10000, Zagreb, Croatia.
| | - Petar Suton
- Department of Radiotherapy and Medical Oncology, University Hospital for Tumours, University Hospital Center "Sisters of Mercy", Ilica 197, 10000, Zagreb, Croatia
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8
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Brkic FF, Kadletz L, Jank B, Cede J, Seemann R, Schneider S, Haymerle G, Parzefall T, Kenner L, Heiduschka G. Pretreatment assessment of hematologic and inflammatory markers in adenoid cystic carcinoma: neutrophil/lymphocyte ratio is associated with multiple recurrences. Oral Surg Oral Med Oral Pathol Oral Radiol 2019; 127:408-416. [DOI: 10.1016/j.oooo.2018.10.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 10/19/2018] [Accepted: 10/21/2018] [Indexed: 02/08/2023]
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Krucoff KB, Shammas RL, Stoecker M, Tolnitch LA. Rare breast metastasis from adenoid cystic carcinoma of the submandibular gland. BMJ Case Rep 2018; 2018:bcr-2017-223345. [PMID: 30068574 DOI: 10.1136/bcr-2017-223345] [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: 11/04/2022] Open
Abstract
Adenoid cystic carcinomas (ACCs) are rare malignant neoplasms of exocrine glands, most commonly found in salivary glands. This report describes a 67-year-old woman with metastatic ACC to the breast, only the third reported case of its kind. The salivary gland ACC was first diagnosed 5 years prior. Routine mammogram identified a Breast Imaging and Reporting Systems (BIRADS) 4 lesion. Core breast biopsy demonstrated findings consistent with metastatic ACC to the breast. The patient ultimately underwent local excision but suffered a recurrence of disease less than 2 months later despite chemotherapy. She passed away 15 months after excision due to complications associated with a small bowel obstruction and decompensated respiratory status from pulmonary metastases. While metastatic salivary ACC to the breast is rare, it is important to be able to distinguish metastatic salivary ACC to the breast from primary ACC of the breast as the treatment considerations for the two disease processes differ significantly.
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Affiliation(s)
| | | | - Maggie Stoecker
- Department of Pathology, Duke Raleigh Hospital, Raleigh, North Carolina, USA
| | - Lisa Anne Tolnitch
- Department of Surgery, Duke University Hospital, Durham, North Carolina, USA
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Chang CF, Hsieh MY, Chen MK, Chou MC. Adenoid cystic carcinoma of head and neck: A retrospective clinical analysis of a single institution. Auris Nasus Larynx 2018; 45:831-837. [PMID: 29653784 DOI: 10.1016/j.anl.2017.10.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Revised: 10/03/2017] [Accepted: 10/16/2017] [Indexed: 12/31/2022]
Abstract
Objective In this study, patients with head and neck adenoid
cystic carcinoma were investigated with respect to disease
characteristics, treatments, and potentially prognostic variables. Materials and Methods Between January 1995 and
December 2010, 29 patients with ACC of the head and neck
treated at our institution were retrospectively reviewed. Results The 29 patients had a mean age of 54.7 years. Of the
29 patients, 4 (13.8%) underwent surgical resection only, 21
(72.4%) underwent surgery with radiotherapy, and 4 (13.8%)
received postoperative chemoradiotherapy. Of 9 patients
(31.0%) who experienced a recurrence within the follow-up
period, 3 (10.3%) had local recurrence and 5 (17.2%) had
distant metastasis; 1 (3.4%) patient had both local recurrence
and distant metastatic spread. Conclusion ACC is a relatively rare tumor associated
with long survival, even in metastatic settings. Despite
aggressive therapy with surgery, radiotherapy, and chemo-
therapy, a marked potential for local and distant recurrence
still remains.
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Affiliation(s)
- Chin-Fang Chang
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; Department of Otorhinolaryngology, Head and Neck Surgery, Jen-Ai Hospital, Taichung 400, Taiwan; Central Taiwan University of Science and Technology, Taichung, Taiwan.
| | - Ming-Yu Hsieh
- Department of Otorhinolaryngology, Head and Neck Surgery, Changhua Christian Hospital, Changhua, Taiwan.
| | - Mu-Kuan Chen
- School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; Department of Otorhinolaryngology, Head and Neck Surgery, Changhua Christian Hospital, Changhua, Taiwan.
| | - Ming-Chih Chou
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan.
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