Intraductal papillary carcinoma of the parotid gland with low malignancy

Pathol Res Pract. 1999;195(4):253-6. doi: 10.1016/S0344-0338(99)80043-0.

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.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Antigens, Nuclear
  • Carcinoma, Papillary / metabolism
  • Carcinoma, Papillary / pathology*
  • Female
  • Humans
  • Immunohistochemistry
  • Keratins / metabolism
  • Ki-67 Antigen
  • Nuclear Proteins / metabolism
  • Parotid Neoplasms / metabolism
  • Parotid Neoplasms / pathology*
  • Proliferating Cell Nuclear Antigen / metabolism

Substances

  • Antigens, Nuclear
  • Ki-67 Antigen
  • Nuclear Proteins
  • Proliferating Cell Nuclear Antigen
  • Keratins