Here's a pretty decent definition of a fistula.

http://www.wisegeek.com/what-are-fistulas.htm

I had a small one once when I had a tooth fracture get infected and a fistula formed near the root of the tooth through the gum to vent the infection. After a course of antibiotics, the fistula healed and I had the tooth extracted. Fistulas are often caused by infections.


Gary Allsebrook
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Dx 11/22/02, SCC, 6 x 3 cm Polypoid tumor, rt tonsil, Stage III/IVA, T3N0M0 G1/2
Tx 1/28/03 - 3/19/03, Cisplatin ct x2, IMRT, bilateral, with boost, x35(69.96Gy)
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"You are a mist that appears for a little while and then vanishes" (James 4:14 NIV)