<prompt> Which type of malignancy is found in anorectal fistulaa Sq. cell Cab Transitional Cell Cac Adeno Cad Columnar Caabcacb  <response>: MC type of carcinoma to arise in fistula-in-ano: Colloid carcinoma 44 Squamous cell carcinoma 34 Adenocarcinoma 22 Clue to early diagnosis is the appearance of mucin globules in Fistulotomy or fistulectomy specimens 