Congenital salivary fistula of accessory parotid gland: imaging findings.
We report the imaging findings in a rare case of an accessory parotid gland fistula.


METHODS
An eight-year-old boy was presented with complaints of serous discharge from his left cheek since birth. As part of the radiological investigation, magnetic resonance imaging, computed tomography sialography with fistulography, and digital sialography with fistulography were performed.


RESULTS
Magnetic resonance imaging demonstrated the exact location of an accessory parotid gland but failed to demonstrate the accessory duct. The presence of an accessory gland was well delineated on computed tomography fistulography and computed tomography sialography. Fistulography revealed a small accessory parotid duct and gland. No communication between the ductal systems of both glands was demonstrated.


CONCLUSIONS
In such cases, pre-operative imaging (with sialography, magnetic resonance sialography and computed tomography sialography with fistulography) is helpful for exact delineation of the ductal anatomy. To the best of our knowledge, only four previous cases of congenital accessory parotid gland fistula have been reported in the English literature.
Gadodia
A
A
Department of Radio-diagnosis, All India Institute of Medical Sciences, New Delhi, India.
Seith
A
A
Sharma
R
R
Thakar
A
A
D002648:Child; D017577:Cutaneous Fistula / Q000151:congenital* / Q000601:surgery; D006801:Humans; D008297:Male; D010306:Parotid Gland / Q000002:abnormalities*; D018987:Salivary Ducts / Q000002:abnormalities*; D012467:Salivary Gland Fistula / Q000151:congenital* / Q000601:surgery; D012796:Sialography / Q000379:methods; D014057:Tomography, X-Ray Computed