A peculiar case of papillary carcinoma arising in the parotid gland is reported. A 68-year-old woman presented with a right, painless, parotid mass, measuring approximately 3 cm in greatest diameter. A conservative parotidectomy was performed. Histologically, the neoplasm showed exophytic papillary projections into a cavity. The cells were focally suggestive of epidermoidal differentiation, whereas a transitional differentiation was noted in other portions, as in bladder papilloma. Immunohistochemical studies showed strong positivity of the neoplastic cells for cytokeratin and weak positivity for PCNA and Mib-1. We classified this neoplasm among the papillary tumors with a low-grade of malignancy.
Intraductal papillary carcinoma of the parotid gland with low malignancy / Laura, Caramanico; Paolo, Marcone; Patrizia, Rovere; DELLA ROCCA, Carlo. - In: PATHOLOGY RESEARCH AND PRACTICE. - ISSN 0344-0338. - 195:4(1999), pp. 253-256. [10.1016/s0344-0338(99)80043-0]
Intraductal papillary carcinoma of the parotid gland with low malignancy
DELLA ROCCA, Carlo
1999
Abstract
A peculiar case of papillary carcinoma arising in the parotid gland is reported. A 68-year-old woman presented with a right, painless, parotid mass, measuring approximately 3 cm in greatest diameter. A conservative parotidectomy was performed. Histologically, the neoplasm showed exophytic papillary projections into a cavity. The cells were focally suggestive of epidermoidal differentiation, whereas a transitional differentiation was noted in other portions, as in bladder papilloma. Immunohistochemical studies showed strong positivity of the neoplastic cells for cytokeratin and weak positivity for PCNA and Mib-1. We classified this neoplasm among the papillary tumors with a low-grade of malignancy.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
