Definition
This is a very rare benign parotid salivary gland tumour.
This tumour occurs in children and young adults.
The tumour is multilocular, the locules being filled with creamy material.
There are multiple cysts lined by bland stratified squamous cells with orthokeratosis and parakeratosis. The lumina are filled with laminated keratin. Ruptured cysts induce a foreign body giant cell reaction. A basement membrane separates the cyst lining from the fibrotic stroma. There are also solid nests of squamous cells.
Well differentiated squamous cell carcinoma.
Complete excision is curative.
1 Cheuk W,Chan JK. Advances in salivary gland pathology. Histopathology 2007; 51:1-20
This page last revised 8.7.2007.
©SMUHT/PW Bishop