A case of parapharyngeal space salivary duct cyst with fine needle biopsy suspicious for squamous cell carcinoma

Abstract

ObjectivesTo report a unique case of salivary duct cyst presenting as parapharyngeal space mass and review relevant literature regarding salivary duct cyst and fine needle aspiration biopsy of salivary gland lesions. MethodsAfter a case description, a review of the literature regarding salivary duct cyst etiology, pathophysiology, presentation, histologic features, and the accuracy of FNA in the context of salivary gland lesions was conducted. ResultsSalivary duct cysts are rare, often acquired, cystic dilatations of salivary ducts thought to arise secondary to ductal obstruction, commonly occurring in the major salivary glands. Fine needle aspiration is the biopsy method of choice for most head and neck lesions. There is controversy surrounding this method in salivary lesions, but recent data indicates it can be just as reliable as in other locations. ConclusionsHere, we highlight a patient with a salivary duct cyst presenting as a parapharyngeal mass, which has not been described in the literature. Overall, FNA in salivary lesions is highly pathologist dependent, which likely contributes to varying accuracy in the literature.