73.32歲男性病人右下腹痛2天，來到急診，身體檢查有明顯局部壓痛，白血球在正常值內但略偏高，C-reactive protein上升。未注射顯影劑的電腦斷層如圖示，下列何項診斷最有可能？
(A)epiploic appendagitis
(B)acute ileus
(C)ascending colon intusussception
(D)colon cancer with perforation