Fig. 12.

PATHOLOGY: metastatic IMT of the appendix. A 63-year-old man with antecedents of left hemicolectomy due to colon cancer. a Axial reformation of contrast-enhanced CT on portal phase acquired seven years after partial colectomy. An appendicular, irregular, solid mass with slight enhancement was identified (yellow arrow). Due to its radiological features, the lesion was diagnosed of appendicular carcinoma. The patient did not perform surgery. b Axial reformation of contrast-enhanced CT on portal phase performed 8 months later showed a significant growth of the appendicular mass with extension and infiltration of the adjacent small bowel loops. c Distant lymphadenopathy and liver metastases were present