→In the presence of the dye at the internal opening located on the dentate line, a primary fistulotomy can be
• Hidradenitis suppurativa
• Thrombosed hemorrhoids
• Skin furuncles
• Herpes
• HIV
• Tuberculosis
• Actinomycosis
• Ulcerative colitis
• Bartholin cyst
• Syphilis
If the abscess is associated with multiple fissures, skin tags, or concomitant fistula, it may suggest an underlying Crohn’s disease [19].