2Gnepp D R, Schroeder W, Heffner D. Synchronous tumours ari- sing in a single major salivary gland [ J ]. Cancer, 1989,63 (6) : 1219 -24.
3Nagao T, Sugano I, Ishida Y, et al. Mucoepidermoid carcinoma a- rising in Warthin ' s tumour of the parotid gland : report of two cases with histopathological, ultrastruetural and studies [ J ]. Histopathology, 1998,33 (4) : 379 - 86.
4Therkildsen M H, Christensen N, Andersen L J, et al. Malignant Warthin' s tumour: a case study [ J ]. Histopathology, 1992,21 : 167 -71.
5Fomelli A, Eusebi V, Pasquinelli G, et al. Merkel cell carcinoma of the parotid gland associated with Warthin' s tumour: report of two cases [ J ]. Histopathology, 2001,39 (4) :342 - 6.
6Sucheta S, Celina C N. Synchronous ipsilateral Warthin tumor en-cased by a separate mucoepifermoid carcinoma of the parotid gland : a case report and review of the literature [ J ]. Diagnostic Cyto- pathol, 2010,38(7) :533 -7.
7Seifert G, Donath K. Hybrid tumors of salivary glands: definition and classification of five rare cases [ J ]. Oral Oncol Eur J Cancer, 1996,32B(4) :251 -9.
8Seifert G. Bilateral mucoepidermoid carcinomas arising in bilateral pre-existing Warthin' s tumours of the parotid gland[ J]. Oral On- col, 1997 ,33 (4) : 284 - 7.
9Park DK,Manning JT Jr,Battifora H,et al.Follincle center lymphoma and Warthin tumor involving the same anatomic site.Report of two cases and review of the literature[J].Am J Clin Pathol,2000,113(1):113-119.
