Injuries of the parotid duct usually result from lacerating wounds, and occasionally from surgical trauma. Clean lacerations can be repaired successfully in the great majority of cases by primary suture over a temporary dowel.2,3,5,11-13 This has the advantage of avoiding the complications of pseudocyst formation and external salivary fistula and of preserving function of the gland. Unrecognized injuries of the parotid duct or injuries resulting in fraying, or loss of a part of the duct, usually result in subcutaneous collection of saliva and subsequent fistula formation. This may be difficult to correct. For fistulae originating in the anterior portion of the duct, the operation of Deguise has been recommended.1,4,6,8,10 This consists simply of passing both ends of a suture through the fistula into the buccal cavity and tying the ends tightly within the mouth. The suture cuts through the tissues and converts an external fistula into an internal
LANDRY RM. Traumatic Pseudocyst Formation of the Parotid Duct: A Safer Method of Obliteration. AMA Arch Surg. 1958;76(1):97–99. doi:10.1001/archsurg.1958.01280190099018
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