RET and salivary gland carcinoma: Furthermore, several studies have identified oncogenic RET fusions in varying subtypes of salivary gland carcinomas, namely ETV6-RET in mammary analogue secretory carcinomas (71–73, 173), NCOA4-RET in intercalated duct-line SDCs (57, 70, 173), TRIM27-RET fusions in mixed intercalated duct-like and apocrine types of SDC (57, 70), and TRIM33-RET fusions were recently detected in oncocytic intraductal carcinoma (74).