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Title: Gross cystic disease fluid protein-15 in salivary gland tumors. Author: Swanson PE, Pettinato G, Lillemoe TJ, Wick MR. Journal: Arch Pathol Lab Med; 1991 Feb; 115(2):158-63. PubMed ID: 1992983. Abstract: Gross cystic disease fluid protein-15 (GCDFP-15) is a 15-kd glycoprotein that is expressed by normal apocrine epithelia and in a majority of breast carcinomas. However, recent studies have demonstrated that this substance is also present in tumors of the salivary glands, sweat glands, and prostate gland. To determine whether the expression of CGDFP-15 might aid in the differential diagnosis of salivary gland lesions, the anti-GCDFP-15 monoclonal antibody D6 was applied to paraffin sections of 133 such neoplasms. Benign tumors (76% reactive) were more often labeled than malignant lesions (28% reactive) by this antibody; overall, 53 (41%) of 133 cases were positive for GCDFP-15. Notably, the tubuloglandular components in 17 (81%) of 21 pleomorphic adenomas were reactive, but no example of either adenoid cystic carcinoma or polymorphous low-grade adenocarcinoma were labeled. In contrast, 24% of adenocarcinomas stained with this antibody. The apparent expression of GCDFP-15 by a spectrum of salivary gland tumors supports their biologic relationship to lesions of the cutaneous apocrine glands and breast. Furthermore, the demonstration of this determinant may be of use in suggesting the salivary gland nature of poorly differentiated carcinomas of the head and neck, and it may facilitate the separation of pleomorphic adenoma from histologically similar malignant neoplasms in the salivary glands themselves.[Abstract] [Full Text] [Related] [New Search]