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Cyclooxegenase-2, Matrix Metalloproteinase-2, 9, 11 and CK19 Expression in Intraductal and Invasive Salivary Duct CarcinomaPerschbacher, Kristina 16 February 2010 (has links)
Salivary duct carcinoma (SDC) is an uncommon neoplasm showing extensive local invasion and metastasis. Histologically it exhibits ductal differentiation without myoepithelial participation and resembles intraductal and invasive ductal carcinoma of the breast. This study investigates the incidence of intraductal disease within invasive SDC and characterizes the expression of CK19, COX-2, MMP-2, 9 and 11 in intraductal and invasive SDC. 21 conventional SDC, 8 SDC arising as carcinoma ex-pleomorphic adenoma (CaExPA), 2 pure low-grade intraductal SDC, 1 pure high-grade intraductal SDC and 1 intraductal SDC with de-differentiation were studied. The presence of intraductal tumor in SDC is relatively common (52.4%) but is not a prominent component. SDC tumor cells were strongly positive for CK19 and COX-2. MMP-2 and 9 expression showed no significant pattern. MMP-11 was expressed by fibroblasts
surrounding invasive tumor and was significantly associated with lymph node positivity (p=0.02).
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Cyclooxegenase-2, Matrix Metalloproteinase-2, 9, 11 and CK19 Expression in Intraductal and Invasive Salivary Duct CarcinomaPerschbacher, Kristina 16 February 2010 (has links)
Salivary duct carcinoma (SDC) is an uncommon neoplasm showing extensive local invasion and metastasis. Histologically it exhibits ductal differentiation without myoepithelial participation and resembles intraductal and invasive ductal carcinoma of the breast. This study investigates the incidence of intraductal disease within invasive SDC and characterizes the expression of CK19, COX-2, MMP-2, 9 and 11 in intraductal and invasive SDC. 21 conventional SDC, 8 SDC arising as carcinoma ex-pleomorphic adenoma (CaExPA), 2 pure low-grade intraductal SDC, 1 pure high-grade intraductal SDC and 1 intraductal SDC with de-differentiation were studied. The presence of intraductal tumor in SDC is relatively common (52.4%) but is not a prominent component. SDC tumor cells were strongly positive for CK19 and COX-2. MMP-2 and 9 expression showed no significant pattern. MMP-11 was expressed by fibroblasts
surrounding invasive tumor and was significantly associated with lymph node positivity (p=0.02).
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Salivary Duct CarcinomaKlijanienko, Jerzy, Al-Abbadi, Mousa A. 09 March 2011 (has links)
No description available.
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