Acinic cell carcinoma of parotid: A case report and review of literature

Abstract

Malignant salivary gland tumors (TMGS) constitute an infrequent group of cancers of a wide histological variety. Within the epithelial lineage neoplasms, we find acinar cell car­cinoma that represent between 6%-10% of all TMGS. It does not have specific clinical or radiological patterns, but it shares common characteristics with other TMGS that will be discussed throughout the report. It should be noted that in general terms it is a low-grade cancer with low recurrence rates, so timely treatment and strict follow-up improve the prog­nosis for this type of patient. Its diagnosis is established with histopathological evidence that confirms the presence of acinar-type epithelial differentiation. Treatment consists of tumor excision with free margins by suprafacial or total parotidectomy, associated with cervical lymph node dissection if nodal locoregional metastasis is detected. Additionally, adjuvant therapy should be suggested in the presence of a poor prognostic factor. A case is presented and a literature review is carried out.