HISTORY:
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.
GROSS:
What is the most likely diagnosis?
- Metastatic signet ring cell carcinoma
- Mucinous adenocarcinoma
- Classic carcinoid tumor
- Goblet cell adenocarcinoma
Goblet cell adenocarcinoma