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Ultrastructure of a sialadenoma papilliferum
Author(s) -
Shirasuna Kanemitsu,
Watatani Kazuya,
Miyazaki Tadashi
Publication year - 1984
Publication title -
cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.052
H-Index - 304
eISSN - 1097-0142
pISSN - 0008-543X
DOI - 10.1002/1097-0142(19840201)53:3<468::aid-cncr2820530317>3.0.co;2-r
Subject(s) - myoepithelial cell , duct (anatomy) , epithelium , ultrastructure , pathology , medicine , anatomy , cholangiocyte , lesion , salivary gland , biology , immunohistochemistry
A case of sialadenoma papilliferum occurring in the hard palate of a 56‐year‐old Japanese man is presented. A pedunculated, nonencapsulated and small mass consisted of predominantly exophytic proliferation of a double‐ or multi‐layered duct epithelium with a concomitant overgrowth of squamous epithelium. This characteristic papillary lesion was demonstrated by electron microscopic examination to be mainly composed of salivary gland duct epithelium intermingled with a few of myoepithelial cells. Moreover, these duct cells were interpreted ultrastructurally as an intercalated duct cell. This finding indicates that sialadenoma papilliferum may be an intercalated duct cell in origin.