Sialolipoma of the Parotid Gland: An Uncommon Lipoma Variant of Salivary Gland

Sialolipoma affecting the salivary glands is an uncommon lipoma variant composed of mature adipose tissue mixed with acinar, ductal, basal and myoepithelial cells of normal salivary gland. It has a wide age range at presentation. Generally, the major gland has male predilection while the minor gland has a female preponderance. A diagnostic workup requires CT or MRI to define the exact location and texture of the lesion. Surgical excision is recommended when the tumor progressively increases in size. Prognosis is good whereby no malignant transformation or recurrences has been reported.