Prognostic scores for patients with salivary adenoid cystic carcinoma without lymph node metastasis

Hikari Shimoda, Masanori Teshima, Takayuki Murase, Toshitaka Nagao, Kimihide Kusafuka, Masato Nakaguro, Makoto Urano, Ken ichi Taguchi, Hidetaka Yamamoto, Satoshi Kano, Yuichiro Tada, Kiyoaki Tsukahara, Kenji Okami, Tetsuro Onitsuka, Yasushi Fujimoto, Daisuke Kawakita, Kazuo Sakurai, Nobuhiro Hanai, Toru Nagao, Ryo KawataNaohito Hato, Ken ichi Nibu, Hiroshi Inagaki

Research output: Contribution to journalLetterpeer-review

Abstract

Adenoid cystic carcinoma (AdCC) of salivary gland grows relatively slowly, but occasionally develops distant metastasis. Although cervical lymph node metastasis (LNM) has been reported as a strong prognostic factor, most of AdCC do not have LNM. In this study, we investigated the prognostic factors to predict disease free survival (DFS), distant metastasis free survival (DMFS), and overall survival (OS) for 175 patients surgically treated for AdCC without LNM, and developed prognostic score (PS) determined as number of positive prognostic factors. The following emerged as significant prognostic factors: positive surgical margin in DFS, pT3/4 and positive surgical margin in DMFS, and positive surgical margin and high-histological grade in OS. 10-year DFS rates were 56.4% in PS0, and 19.1% in PS1 (p < 0.0001). 10-year DMFS rates were 86.3% in PS0, 56.4% in PS1, and 30.7% in PS2 (p < 0.0001). 10-year OS rates were 100% in PS0, 73.3% in PS1, and 38.8% in PS2 (p < 0.0001).

Original languageEnglish
Article number106491
JournalOral Oncology
Volume145
DOIs
Publication statusPublished - 10-2023

All Science Journal Classification (ASJC) codes

  • Oral Surgery
  • Oncology
  • Cancer Research

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