Characterization of two types of crystalloids in pleomorphic adenomas of minor salivary glands. A light-microscopic, electron-microscopic, and histochemical study.

Abstract

Crystalloids have been previously described in salivary gland tumors. In order to ascertain the incidence of these structures, the authors reviewed a series of 294 minor salivary gland tumors. One hundred thirty pleomorphic adenomas were identified, and 6 of these contained crystalloids. No crystalloids were found in other benign or malignant salivary gland tumors. These six file cases and a recent seventh case containing crystalloids were studied by light and electron microscopy and with histochemistry. Two types of crystalloids were found. One case contained previously described tyrosine-rich crystalloids, and the other six contained crystalloids composed of radially arranged collagen fibers. Both types of crystalloids are further characterized and discussed.

Full text

PDF

• 194
• 195
• 196
• 197
• 198
• …
• 202
• Next

Images in this article

Figure 1-3
on p.196

Figure 4-6
on p.197

Figure 7
on p.198

Figure 8
on p.199

Figure 9
on p.200

Figure 10
on p.201

Figure 11
on p.201