Tumors for which this phenomenon is well characterized include acinic
cell carcinoma, adenoid cystic carcinoma, and epithelial-myoepithelial carcinoma.
cell carcinoma was diagnosed in 4 (3.50%) cases, 2 cases each were seen in parotid and submandibular glands.
cell carcinoma is a rare, slow-growing, malignant tumor with imaging findings indistinguishable from other parotid tumors.
cell adenocarcinoma of the parotid gland; report of twenty-seven cases.
Infiltration into the salivary gland parenchyma in the form of trabeculae, sheets, and nests (5) Pleomorphic adenoma Encapsulated, presence of chondromyxoid areas, characteristic melting pattern seen (6) Warthin's tumour Papillary cystic lesion with bilayered oncocytic epithelium overlying lymphoid stroma (7) Acinic
cell carcinoma Forms a solitary mass or multiple nodules and invades in broad fronts.
cell carcinoma is a low-grade salivary gland carcinoma characterized by serous differentiation.
Out of 12 malignant tumors mucoepidermoid carcinoma was in 5(6.41%), followed by adenoid cystic carcinoma in 3(3.84%), acinic
cell carcinoma in 2(2.56%), malignant mixed tumor and large duct adenocarcinoma 1(1.28%) in each case.
Regarding the clinical aspects, all benign tumors were nodules, whereas malignant tumors were nodules in 19 cases (11 cases of adenoid cystic carcinoma, four cases of mucoepidermoid carcinoma and four cases of acinic
cell carcinoma) and ulcerated nodules in five cases (three cases of adenoid cystic carcinoma, one case of mucoepidermoid carcinoma and one case of acinic
(2) The incidence of salivary tumors in children is not clearly defined; at our institution, a previous 14-year retrospective study found 92% of the salivary gland tumors excised were pleomorphic adenomas, with the other tumors being acinic
Among the malignant tumours, the most common is adenoid cystic carcinoma, while the others are mucoepidermoid carcinoma, adenocarcinoma, acinic
cell tumour, lymphoma and malignant mixed tumour.
Cell Carcinomas, Adenocarcinomas and Myoep- ithelial Carcinomas were rare.12,13,14
Primary malignant neoplasms include mucoepidermoid carcinoma, adenoid cystic carcinoma, adenocarcinoma, malignant mixed tumors, acinic
cell carcinoma, lymphoma, and squamous cell carcinoma.