A 54-year-old man comes to the physician for a 6-month history of increasing abdominal discomfort, bloating, and alternating diarrhea and constipation, with occasional gross blood. He has lost 10 pounds during this time. He has a long history of smoking and worked in construction for 25 years. Physical examination reveals a mildly distended abdomen with generalized tenderness on deep palpation. Vitals and laboratory studies are normal. CT of the abdomen shows a mass in the cecum with thickened, irregular bowel walls. Which of the following is most likely to be seen in this patient?
Diverticulitis with abscess formation
Irritable bowel syndrome
Sigmoidal dysplasia with tubulovillous morphology
Small bowel villous atrophy with nascent T-cell lymphoma
Transmural noncaseating granulomatous inflammation
