Acinic cell carcinoma of the parotid gland in childhood.

A 13-year-old girl underwent surgery at the Ear Nose and Throat Department of the Children's Hospital and Scientific Research Institute, Bambino Gesù, Rome, because of an acinic cell carcinoma of the parotid gland. Two years after total parotidectomy with preservation of the facial nerve, metastasis occurred in a lateral cervical lymph node. Acinic cell tumors are uncommon in childhood; in children under the age of 16 years only 35 cases have been reported. There are too few acinar cell carcinomas occurring in children to yield an idea of their natural course. The neoplasm is also referred to as 'acinar cell tumor', in contrast to acinar cell carcinoma, because the neoplasm may be benign or malignant. Unfortunately, there are no histological distinguishing features that permit the pathologist to determine which neoplasm will behave in an aggressive fashion.