Salivary duct carcinoma of the parotid gland. Cytologic and histopathologic study.

Ductal carcinoma is an uncommon tumor of the salivary glands. Histopathologically, it is characterized by the presence of intraductal and infiltrative neoplastic components, morphologically resembling mammary carcinoma. A case of ductal carcinoma of the parotid gland, in which preoperative fine needle aspiration biopsy was performed, is presented. Cytologic examination of the aspirate revealed naked nuclei featuring anisokaryosis, chromatin clumps and clear vacuolar zones.