Sebaceous Lymphadenoma of Parotid: Case Report of a Rare Entity

AbstractSebaceous differentiation can be normally seen in salivary glands. An entity first described by Hamperi. Sebaceous components are present in several salivary gland tumors like Warthin ’s tumor and mucoepidermoid tumor. But, if the sebaceous component predominates, it is known as a sebaceous adenoma. If lymphatic stroma in the background is prominent, it qualifies as sebaceous lymphadenoma. The term was coined and properly described by McGavran et al., differentiating it from si milar appearing tumors like Warthin’s tumor, sebaceous adenoma, and mucoepidermoid tumor. Clinicians, as well as pathologists, need to be aware of this entity as it is known to undergo malignant degeneration. Since it is a benign entity, the most common symptom is painless parotid swelling. The pa tient in this case also presented with painless parotid swelling and underwent preoperative FNAC and MRI. But, the diagnosis was made after surgical excision. The patient recovered well after surgery and is being followed. Since this disease is known for malignant degeneration and recurrence careful diagnosis is required. Histopathological picture may be confused with other common entities like Warthin also known as papillary cystadenoma lymphomatosum since both have sebaceous and lymphoid components. McGavran differentiated between both entities. Sebaceous lymphadenoma can convert to sebaceou s adenocarcinoma and is thus important to know the correct diagnosis, even if it is postoperative since r...
Source: Indian Journal of Surgical Oncology - Category: Cancer & Oncology Source Type: research