Erschienen in:
01.01.2016 | Case report
An extremely rare salivary gland tumor: intraductal carcinoma of the buccal mucosa
verfasst von:
Junya Nojima, Mitsuhiko Nakahira, Hiroshi Yamaguchi, Shoichiro Kokabu, Tetsuya Yoda, Masashi Sugasawa
Erschienen in:
International Cancer Conference Journal
|
Ausgabe 1/2016
Einloggen, um Zugang zu erhalten
Abstract
Intraductal carcinoma of the salivary gland is a rare, indolent neoplasm characterized by intraductal malignant cell proliferation but lacking invasiveness, in contrast to conventional salivary duct carcinoma, a clinically aggressive neoplasm with invasive characteristics. The tumor affects the major salivary glands much more frequently than the minor salivary glands. This report describes an extremely rare intraductal carcinoma arising from the buccal mucosa in a 61-year-old man who presented with a painless mass in the left buccal mucosa, which he had had for 1 month. A biopsy of the tumor indicated it was most likely an adenocarcinoma, but accurate preoperative diagnosis was difficult. The tumor was completely removed, along with sufficient margins. Histological examination revealed that the lesion was composed of proliferating epithelial cells surrounded by an intact myoepithelial layer, with no evidence of invasion. The final diagnosis was intraductal carcinoma of the salivary gland. No recurrence has been observed for over 3 years. In conclusion, the difficulty in preoperatively diagnosing this rare entity suggests that complete surgical excision with sufficient margins remains the best treatment option.