[Analysis of 2161 cases of neoplasm in oral maxillofacial region in Xinjiang].
OBJECTIVE
To investigate the incidence and constituent characteristic of neoplasm in oromaxillo-facial region in Xinjiang.


METHODS
A total of 2161 patients with benign or malignant oral-maxillofacial tumors diagnosed in Department of Dentofacial Surgery of the First Affiliated Hospital of Xinjiang Medical College from 1995 to 2009 were analyzed retrospectively.


RESULTS
Of the 2161 cases, 58.49% (1264/2161) was benign tumors, 33.13% (716/2161) malignant tumors, and 8.38% (181/2161) tumor-like lesions. The most common benign tumors were pleomorphic adenoma, hemangioma, papilloma, adenolymphoma and ameloblastoma. Squamous cell carcinoma constituted the majority of the malignant tumors. The most common malignant tumors of salivary gland were adenoid cystic carcinoma. The most common odontogenic tumors was ameloblastoma. The most common sites of malignant tumors were tongue, lip, parotiod gland and buccal mucosa.


CONCLUSIONS
The common pathological type of oral and maxillofacial benign neoplasm and the most common sites of malignancy in Xinjiang region were similar to those of other places inside and outside the country. Adenoid cystic carcinoma was more common than other salivary originated tumors. There was more malignant tumors in Uygur nationality than in Han living in the same region.
Department of Pathology, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine & Shanghai Research Institute of Stomatology & Shanghai Key Laboratory of Stomatology, Shanghai 200011, China.
Chen
C
Lin
Jiang
J
Li
Na
N
Lu
D000235:Adenolymphoma; D008949:Adenoma, Pleomorphic; D000564:Ameloblastoma; D003528:Carcinoma, Adenoid Cystic / Q000453:epidemiology / Q000473:pathology; D002294:Carcinoma, Squamous Cell / Q000453:epidemiology / Q000473:pathology; D002681:China / Q000453:epidemiology; D005145:Face; D006801:Humans; D015994:Incidence; D009061:Mouth Mucosa; D009062:Mouth Neoplasms / Q000453:epidemiology / Q000473:pathology*; D009808:Odontogenic Tumors; D012189:Retrospective Studies; D012468:Salivary Gland Neoplasms