Squamous cell carcinoma arising from Stensen's duct

Abstract

We report a case of squamous cell carcinoma presumably arising from the left Stensen's duct. The tumor was discovered during management of recurrent left parotitis. Ultrasonography, computed tomography, and magnetic resonance imaging were useful for estimating the tumor and coexisting obstructive parotitis. Relapsing symptoms and the presence of parotitis seemed to be characteristic of tumors of Stensen's duct. For a mass accompanied by obstructive parotitis or relapsing parotitis without salivary calculus, a tumor of Stensen's duct should be included in the differential diagnosis.

Image interpretation for squamous cell carcinoma of Stensen duct

“…Such a signal intensity in a mass-like lesion suggests a parenchymal mass, that is to say, a neoplastic, tumorous mass lesion. Although these findings resembled those of a case reported by Tominaga et al 8 , our contrast-enhanced findings showed that the contrast-enhanced thickened wall had avoided the tumorous mass altogether. In other words, the layer of rim-enhancement surrounding the mass represented a continuous 10 transition from the thickened duct wall.…”

“…Based on previous evidence, the most prevalent site for primary carcinoma arising in Stensen's duct is just proximal to the orifice. A case report by Tominaga et al 8 noted SCC arising from the terminal end of Stensen's duct, close to the orifice. This was similar to the findings in another case described by Carpenter et al 9 .…”

“…To the best of our knowledge, only 8 cases of SCC have been reported in the English-language literature. [1][2][3][4][5][6][7][8] Moreover, only 3 studies have investigated the imaging features of SCC, and these focused on computed tomography 8,9 , magnetic resonance imaging 8,10 and ultrasonography 8 .…”

Stensen’s Duct Carcinoma with a Papillary Architecture

“…1) may be helpful as they typically result from a StDC but not from accessory gland tumours [2]. Localisation by MRI and contrast enhanced CT imaging is also useful in this regard [3,4].…”

Primary squamous cell carcinoma of Stensen's duct in a patient with HIV: The role of magnetic resonance imaging and fine‐needle aspiration

“…[1][2][3][4][5][6][7][8] These tumors may originate from anywhere along the course of Stensen's duct and may be difficult to distinguish from those arising from the parotid gland, accessory parotid gland, minor salivary glands, and oral mucosa. A comprehensive review of malignant tumors of Stensen's duct by Steiner et al in 1999 reported 25 cases of primary malignancies of Stensen's duct since 1927.…”