Squamous cell carcinoma arising from longstanding colocutaneous fistula: A case report

Figure 1 A: Surgical scar over left flank with two fistulous openings; B: Abdominal CT scan revealed irregular mass between the pancreatic tail, spleen and left lateral abdominal wall with air bubbles; C: The fistulogram revealed communication between the skin and sinus tract; D: The fistulogram revealed communication between the skin and intestinal tract; E: At laparotomy, splenomegaly and dense adhesion to the splenic flexure of colon (arrow) and the left abdominal wall were noted; F: The drawing revealed the relation between the fragile soft mass, the fistulas, the spleen and the bowels; G: The specimen was shown and these two openings in the colon communicating with skin were indexed with the instruments.

Figure 2 Microscopic photograph. A: The squamous cancer cells and keratin pearls (arrow) were shown on the microscopic photograph; B: The pathological photograph revealed fistulous tract (arrow) and the tumor cells arose from its epithelium; C: The microscopic photograph revealed the tumor cells (arrow) invading the spleen (triangular arrow); D: The microscopic photograph revealed the tumor cells (arrow) invading the colon (triangular arrow).