Survival outcomes of eye-sparing surgery for adenoid cystic carcinoma of lacrimal gland
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To survey adenoid cystic carcinoma of lacrimal glands in Asian population and investigate the predictability in prognosis following the 8th edition American Joint Committee on Cancer (AJCC) staging guideline.
The clinical entities and surgical outcomes of the patients who were histologically confirmed with a diagnosis of lacrimal adenoid cystic carcinoma in National Taiwan University Hospital between January 1995 and December 2015 were retrospectively reviewed.
Enrolled were 11 patients. The median follow-up was 7.2 years. Eight patients (72.7%) were diagnosed as T1 or T2 disease, and three patients (27.3%) were diagnosed as T3 or T4 disease according to the AJCC 8th edition guideline. Eye-sparing surgery with radiotherapy was performed in nine patients. Local recurrence was noted in six patients (54.5%) with median disease-free interval of 23.5 months. Six patients (54.5%) developed distant metastases, including lung, bone, and cranial invasions. Overall survival rate during the study period was 54.6%. Five-year overall survival was 81.8% and ten-year overall survival was 68.2%. The Log-rank test for overall survival and disease-free survival between patients with less than T3 disease (p=0.001) and patients with T3 or T4 disease (p=0.006) revealed significant differences.
This study highlighted the aggressive nature of adenoid cystic carcinoma of lacrimal glands. Eye-sparing surgery with adjunctive radiotherapy may achieve relatively optimal disease control in diseases staged T1 or T2, but in advanced disease metastasis and mortality are usually inevitable.
KeywordsAdenoid cystic carcinoma Lacrimal gland tumor AJCC staging
Conflicts of interest
J.-Y. Hung, None; Y.-H. Wei, None; C.-H. Huang, None; L.-W. Chen, None; C.-S. Fuh, None; S.-L. Liao, None.
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