Date of Presentation:11/29/2021

Attending pathologist: Martha Yearsley, MD

Presented by: Saba Shafi, MD

Prepared by: Saba Shafi, MD



A 65-year-old male presented to the ED with a complaint of RLQ abdominal pain x2 weeks that continued to worsen. He underwent a CT scan which showed inflammatory changes surrounding the sigmoid colon associated with diverticulosis and adjacent inseparable appendix, unable to rule out appendicitis. He underwent a laparoscopic appendectomy. No diverticulosis apparent during surgery but the appendix was adhered to the sigmoid colon and was removed in 2 pieces. The resected specimen of appendix is shown.


What is the most likely diagnosis?

  1. Metastatic signet ring cell carcinoma
  2. Mucinous adenocarcinoma
  3. Classic carcinoid tumor
  4. Goblet cell adenocarcinoma
Goblet cell adenocarcinoma