PMID- 35155790 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231105 IS - 2378-8038 (Print) IS - 2378-8038 (Electronic) IS - 2378-8038 (Linking) VI - 7 IP - 1 DP - 2022 Feb TI - Prognostic analysis and establishment of a nomogram in patients with myoepithelial carcinoma of the salivary gland: A population-based study. PG - 125-134 LID - 10.1002/lio2.723 [doi] AB - BACKGROUND: Currently, the clinicopathological characteristics and prognosis of myoepithelial carcinoma of salivary gland (MC-SG) have not been defined well. The present study aimed to describe the clinicopathological characteristics and prognosis of MC-SG patients. METHODS: The Surveillance, Epidemiology, and End Results database was searched for all patients diagnosed with MC-SG between 1991 and 2016. The Kaplan-Meier method and log-rank tests were used to evaluate the survival. Univariate and multivariate Cox regression analysis were used to identify prognostic biomarkers for overall survival (OS) and disease-specific survival (DSS). Furthermore, a prognostic nomogram was established, and its predictive accuracy and discriminative ability were determined using the concordance index (C-index). RESULTS: In total, 245 patients diagnosed with MC-SG were identified. The median OS was 152.0 months, with 3-, 5-, and 10-year survival rates of 79.8%, 69.2%, and 50.3%. The 3-, 5-, and 10-year DSS rates were 82.5%, 77.1%, and 61.9%, respectively. Regarding the treatment regimen, most patients (92.2%) underwent surgery, and 103 patients (42.4%) received postoperative radiotherapy. Surgery could significantly prolong OS and DSS (p < .05), but postoperative radiotherapy did not significantly prolong OS and DSS when compared with individuals receiving surgery alone (p > .05). Multivariate Cox analysis revealed that T category (T4), lymph node metastasis (N2), distant metastasis (M1), and poor differentiation were independent unfavorable prognostic factors for OS and DSS. Older age (>62 years) was also independently associated with OS. In addition, the C-index for the established OS- and DSS-specific nomogram was 0.80 (95% CI: 0.72-0.88) and 0.82 (95% CI: 0.73-0.90). CONCLUSION: Age, tumor invasion, metastases, and pathological grade were independently associated with prognosis of MC-SG patients, and the prognostic nomogram of this rare disease was established. CI - (c) 2022 The Authors. Laryngoscope Investigative Otolaryngology published by Wiley Periodicals LLC on behalf of The Triological Society. FAU - Liu, Ying AU - Liu Y AUID- ORCID: 0000-0003-3951-1388 AD - Center for Esthetic Dentistry Jinan Stomatological Hospital Jinan China. FAU - Mi, Yong AU - Mi Y AD - Dental Laboratory Jinan Stomatological Hospital Jinan China. FAU - Zhang, Li AU - Zhang L AD - Center for Esthetic Dentistry Jinan Stomatological Hospital Jinan China. FAU - Gong, Qi AU - Gong Q AD - Center for Esthetic Dentistry Jinan Stomatological Hospital Jinan China. FAU - Jiang, Tao AU - Jiang T AD - Center for Esthetic Dentistry Jinan Stomatological Hospital Jinan China. LA - eng PT - Journal Article DEP - 20220104 PL - United States TA - Laryngoscope Investig Otolaryngol JT - Laryngoscope investigative otolaryngology JID - 101684963 PMC - PMC8823152 OTO - NOTNLM OT - SEER database OT - myoepithelial carcinoma OT - nomogram OT - prognosis OT - salivary gland tumor COIS- The author declared no conflict of interest. EDAT- 2022/02/15 06:00 MHDA- 2022/02/15 06:01 PMCR- 2022/01/04 CRDT- 2022/02/14 05:36 PHST- 2021/08/31 00:00 [received] PHST- 2021/10/26 00:00 [revised] PHST- 2021/12/11 00:00 [accepted] PHST- 2022/02/14 05:36 [entrez] PHST- 2022/02/15 06:00 [pubmed] PHST- 2022/02/15 06:01 [medline] PHST- 2022/01/04 00:00 [pmc-release] AID - LIO2723 [pii] AID - 10.1002/lio2.723 [doi] PST - epublish SO - Laryngoscope Investig Otolaryngol. 2022 Jan 4;7(1):125-134. doi: 10.1002/lio2.723. eCollection 2022 Feb.