internal fistula


Also found in: Medical.

internal fistula

[in′tərn·əl ′fis·chə·lə]
(anatomy)
A fistula which has no opening through the skin.
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References in periodicals archive ?
Key steps are visualization of the fistula tract, correct localization of the internal fistula opening under direct vision and endoscopic treatment of the fistula.
Internal fistula as a route of infection in acute suppurative thyroiditis.
In June 1999, he presented with gastrointestinal obstruction and internal fistula formation, and underwent terminal ileum and ascending colon resection.