An open communication between the anal canal and perirectal skin. Anorectal fistulas typically form from an abscess of the anal crypt glands.
In patients with perianal Crohn disease, ...
Perianal pain, pruritus, purulent (often malodorous) perianal drainage, and perirectal skin lesions
Intermittent rectal pain worse with defecation/sitting
Fever most common with abscess...
Surgical treatment is definitive (1)[A].
Optimal surgical treatment is based on fistula classification.
Goals of treatment are to eliminate the inflammatory process, maintain ...
K60.5 Anorectal fistula
K60.3 Anal fistula
K60.4 Rectal fistula
72779005 Anorectal fistula
197155003 intersphincteric fistula (disorder)
261827001 high anal fistula (disorder)
235793000 Sup...
Suspect anorectal fistula in patients with perianal pain, pruritus, purulent drainage, and perirectal skin lesions.
Surgery is the traditional mainstay of treatment for patients who do ...
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An anorectal fistula is an inflammatory tract or tube that opens at one end into the anus or rectum and at the other end onto the skin surface (as shown here) or into another viscus. An abscess usually antedates such a fistula. Look for the fistulous opening or openings anywhere in the skin around the anus.
An anorectal fistula is an inflammatory tract or tube that opens at one end into the anus or rectum and at the other end onto the skin sur...
The pectinate line (also called the dentate or mucocutaneous line by some clinicians) is a particularly important landmark because it is visible and approximates the level of important anatomical changes mentioned previously (e.g., in the nerve supply to the anal canal). Anal fissures and perianal abscesses (A). Prolapes of Hemorrhoids (B).
The pectinate line (also called the dentate or mucocutaneous line by some clinicians) is a particularly important landmark because it is v...
FIG. 2.62. Crohn disease. <bold>A:</bold> Fat-suppressed T2-weighted image of lower abdomen demonstrates thickening and increased signal intensity of left colon (<italic>arrow</bold>) in patient with active Crohn disease. <bold>B:</bold> Non–fat-suppressed coronal HASTE image of same patient as <bold>(A)</bold> demonstrates colon wall thickening (<italic>arrow</bold>), but lack of fat suppression limits assessment of edema and fluid.
FIG. 2.62. Crohn disease. <bold>A:</bold> Fat-suppressed T2-weighted image of lower abdomen demonstrates thickening and increa...
FIGURE 93.5. Crohn’s disease of the terminal ileum demonstrated by severe narrowing of the terminal ileum (as shown between the two <italic>arrows</bold>). The cecum is represented by the “C.”
FIGURE 93.5. Crohn’s disease of the terminal ileum demonstrated by severe narrowing of the terminal ileum (as shown between the two <it...
<bold>Fig GI 19-6 Crohn's disease.</bold> Severe postbulbar narrowing with distal fold thickening.
<bold>Fig GI 27-14 Crohn's disease.</bold> Multiple polypoid lesions in the distal jejunum and proximal ileum show both smooth and lobulated contours.<sup>31</sup>
<bold>Fig GI 27-14 Crohn's disease.</bold> Multiple polypoid lesions in the distal jejunum and proximal ileum show both smooth...
<bold>FIGURE 39-4</bold> Crohn disease. The mucosal surface of the colon displays a "cobblestone" appearance owing to the presence of linear ulcerations and edema and inflammation of the intervening tissue.
<bold>FIGURE 39-4</bold> Crohn disease. The mucosal surface of the colon displays a "cobblestone" appearance owing to the pres...
<bold>FIGURE 51.1</bold> Mucosal ulcerations (<italic>arrows</bold>) in Crohn disease of the small bowel.
<bold>FIGURE 51.2</bold> Islands of edematous mucosa surrounded by linear ulceration showing the classic "cobblestone" appearance of Crohn disease.
<bold>FIGURE 51.2</bold> Islands of edematous mucosa surrounded by linear ulceration showing the classic "cobblestone" appeara...
<bold>FIGURE 51.3</bold> Severe Crohn disease affecting the terminal ileum (<italic>white arrow</bold>) with normal ileum for comparison (<italic>black arrow</bold>).
<bold>FIGURE 51.3</bold> Severe Crohn disease affecting the terminal ileum (<italic>white arrow</bold>) with norma...
<bold>FIGURE 51.12</bold> Crohn disease of the ileum (<italic>arrow</bold>) as seen laparoscopically.