title: Clinicopathological review and survival characteristics of adenoid cystic carcinoma.
abstract: To study the clinical characters, the outcomes of treatments and the factors affecting treatment results of adenoid cystic carcinomas at Shahid Sadoughi Hospital and Shahid Ramazanzadeh radiotherapy center, Yazd, Iran. The clinical data of 31 patients with adenoid cystic carcinoma of any anatomic site diagnosed over an 8 year period (2004-2012), were investigated retrospectively. Data regarding patients' characteristics, pathological features and follow-up were obtained from patients records. Survival rate, local recurrence and distant metastasis were analyzed using Kaplan-Meier method. Prognosis factors were analyzed by Log-rank test and Cox regression. The study included31 patients with adenoid cystic carcinoma. The mean age at presentation was 50.2 ± 24.8 years. There were 11 (35.5 %) males and 20 (64.5 %) females with a female predilection (M:F = 0.55:1). Parotid gland was the most common site (8/31, 25.7 %) followed by submandibular gland (7/31, 22.6 %). Perineural invasion was detected in 67.7 % of the cases. Positive surgical status was reported in 48.4 % of the specimens. Metastasis was detected in 25.8 % of the patients and the most common site of distant metastasis was lung. Overall survival rates at 2, 5, and 7 years were 95, 75, and 57 % respectively. Margin status showed significant effect on survival (P value = 0.01). Positive surgical margin is an important factor affecting the prognosis of the patients with adenoid cystic carcinoma. Surgery with negative surgical margin is the first choice of treatment for the patients with adenoid cystic carcinoma. Our findings show that the prognosis of patients with adenoid cystic carcinoma in our center is fair.
authors.affiliation: Department of Pathology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
authors.forename: Fariba
authors.initials: F
authors.lastname: Binesh
authors.affiliation: Department of Radiotherapy, Isfahan University of Medical Sciences, Isfahan, Iran.
authors.forename: Ali
authors.initials: A
authors.lastname: Akhavan
authors.affiliation: Otorhinolaryngology research center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
authors.forename: Omid
authors.initials: O
authors.lastname: Masumi
authors.affiliation: Department of Otolaryngology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
authors.forename: Abbas
authors.initials: A
authors.lastname: Mirvakili
authors.affiliation: Otorhinolaryngology research center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
authors.forename: Nasim
authors.initials: N
authors.lastname: Behniafard
keywords: Adenoid cystic carcinoma; Clinicopathology; Survival