Fistula tract internal opening

The "fistula tract internal opening" describes the starting point of an anal fistula on the inside of the anal canal. In anal fistula—a pathological tunnel between the anal canal and perianal skin—the tract has two key sites: the external opening (on skin) and the internal opening (usually at the dentate line or within the anal canal). Identifying the precise location of the internal opening is crucial in surgical management, since failure to treat this area leads to persistent or recurrent disease. The internal opening is typically at the site of infection/blockage of the anal gland which initiates the fistula. This is an anatomic feature, not a molecular or therapeutic drug target. Key points: - This is an anatomic site, not a molecular structure, protein, enzyme, receptor, or cell-surface marker. - "Fistula tract internal opening" is not used in drug development or pharmacology as a druggable target. - Not appropriate for structured molecular/biological target fields typical in drug discovery documentation.

Other names

Internal opening of anal fistulainternal orifice of fistula tract