Papillary cystadenoma arising from the upper lip: a case report.
We report a rare case of a papillary cystadenoma arising from the upper lip. This tumor was not distinctly encapsulated and had proliferated replacing the ductal epithelium. Mast cells were found not only in the stroma but also in the oncocytic epithelial layer. There was a strong immunoreaction with mitochondrial antibody in the epithelial layer. Only one case (0.9%) of papillary cystadenoma has occurred among the 110 benign intraoral salivary gland tumors seen in our hospital from 1966 through September 2003.
Matsuzaka
Kenichi
K
Oral Health Science Center, Department of Clinical Pathophysiology, Tokyo Dental College, 1-2-2 Masago, Mihama-ku, Chiba 261-8502, Japan. matsuzak@tdc.ac.jp
Kokubu
Eitoyo
E
Takeda
Eizo
E
Tanaka
Yoichi
Y
Shimono
Masaki
M
Inoue
Takashi
T
D018292:Cystadenoma, Papillary / Q000473:pathology*; D006801:Humans; D008048:Lip Neoplasms / Q000473:pathology*; D008297:Male; D008407:Mast Cells / Q000473:pathology; D008875:Middle Aged; D012468:Salivary Gland Neoplasms / Q000473:pathology*; D012470:Salivary Glands, Minor / Q000473:pathology