Sebaceous lymphadenoma is rare benign salivary gland neoplasm [1
]. There have been several care reports describing the tumour and its association with other salivary gland neoplasm. Sebaceous lymphadenoma is predominantly seen in elderly females and age at presentation ranges between 25 to 89 years.
Microscopy in sebaceous lymphadenoma show variable sized sebaceous glands admixed with salivary ducts surrounded by dense lymphoid stroma. Lymphoid background has well developed germinal centres. Histiocytes, foreign body giant cell and inflammatory reaction are seen. Focal necrosis can be observed occasionally [2
Histogenesis of Sebaceous lymphadenoma is unclear. Possible theories are that it develops within the ectopic salivary gland in intraparotid lymph node [1
] or may arise due to sebaceous differentiation in other tumours [1
]. Other tumours to consider with similar histological characteristic include tumours with focal sebaceous differentiation, Warthin's tumour, mucoepidermoid carcinoma, pleomorphic adenoma (malignant), adenoid cystic carcinoma, benign oncocytoma and basal cell adenoma. [5
Malignant transformation of the sebaceous lymphadenoma, although rare, should be considered along with possibility of a synchronous second primary malignant neoplasm in enlarging, locally invasive parotid lesions, considering that clinical behaviour and prognosis will be determined by the nature of the malignant component [7
Parotidectomy is the treatment of choice in sebaceous lymphadenoma, however in presence of synchronous squamous cell carcinoma neck dissection should also be carried out if cervical lymph nodes are involved and we feel that postoperative adjuvant radiotherapy should improve the survival.