|Salivary duct carcinoma|
|Classification and external resources|
Low magnification micrograph
of a salivary duct carcinoma with characteristic comedonecrosis (left of image) adjacent to normal parotid gland
(right of image). H&E stain
Salivary duct carcinoma, abbreviated SDC, is a rare type of aggressive cancer that arises from the salivary gland ducts. It is predominantly seen in men and, generally, has a poor prognosis.
The typical presentation is a rapidly growing mass with associated pain. This may be seen in association with neck lymph node swelling (cervical lymphadenopathy), due to metastases, and facial nerve paralysis.
SDC are diagnosed by examination of tissue, e.g. a biopsy.
Their histologic appearance is similar to ductal breast carcinoma.