RT Journal Article SR Electronic T1 MR Imaging Features of Primary Mucosal Melanoma of the Eustachian Tube: Report of 2 Cases JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 431 OP 433 DO 10.3174/ajnr.A1270 VO 30 IS 2 A1 B.T. Yang A1 Z.C. Wang A1 J.F. Xian A1 Q.H. Chen YR 2009 UL http://www.ajnr.org/content/30/2/431.abstract AB SUMMARY: We observed 2 cases of malignant melanoma arising from the eustachian tube with MR imaging. In this region, we explored further characteristics of primary mucosal melanoma. We discuss the value of using MR imaging to diagnose and treat patients with melanoma in the eustachian tube. In addition, we introduce the key points to differentiate melanoma from some common diseases in the region.