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1 From the Department of Radiology, Baragwanath Hospital, Johannesburg, South Africa
The sialographic findings in 17 patients presenting with a parotid swelling and, or fistula following facial trauma are reported.
Knife inflicted wounds accounted for the majority of cases.
The commonest findings were complete occlusion of the main parotid duct or a patent main duct communicating with a contrast-filled cavity (sialocele). Less commonly, there was occlusion of a major branch duct or evidence of dilatation and irregularity of segments of large or small ducts (infective in origin ?). In 2 instances a parotid swelling was simulated by an extrasali vary lesion (subcutaneous hematoma or abscess).
The clinical features of injury to the parotid duct and/or gland, and the various modes of therapy advocated for dealing with a persistent salivary fistula are briefly mentioned.
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