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- W2052286628 abstract "Salivary duct carcinoma (SDC), a rare neoplasm of the major salivary glands, is a high-grade carcinoma with a predilection for elderly men. The authors investigated the prognostic role of p53, c-erbB2, proliferating cell nuclear antigen (PCNA), and DNA flow cytometry in a pathobiological evaluation of a cohort of 30 patients with these neoplasms. The patient group comprised 24 men and 6 women, with ages ranging from 22 to 87 years (mean = 61 years). Twenty-eight tumors were located in the parotid gland and two in the submandibular gland. Tumor size ranged from 1.0 to 8.0 cm (mean = 3.48 cm). Regional metastases were found in 73.3% (22 patients), systemic metastases in 43.3% (13 patients), and recurrences in 8 (26.6%) patients. DNA aneuploidy was found in 18 tumors (58.0%) and DNA diploidy in 12 (42%), with proliferative fractions ranging from 8.60% to 15.5 (mean = 10.6%). p53 protein nuclear immunostaining was positive in 56.6% and c-erbB2 overexpression was observed in 63% of the tumors. PCNA positivity ranged from 16.5% to 91.0%, with a mean of 49.5%. p53 immunopositivity, DNA aneuploidy, high growth, and proliferative fractions by PCNA and flow cytometry did not correlate with patient outcome. These results indicate that tumor size (P = .05), distant metastasis (P = .006), and C-erbB2 amplification (P = .04) are independent prognostic parameters in patients with salivary duct carcinoma." @default.
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- W2052286628 date "1996-06-01" @default.
- W2052286628 modified "2023-10-18" @default.
- W2052286628 title "Prognostic significance of biomarkers (c-erbB-2, p53, proliferating cell nuclear antigen, and DNA content) in salivary duct carcinoma" @default.
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- W2052286628 doi "https://doi.org/10.1016/s0046-8177(96)90162-8" @default.
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