The best replacement for carcinoid is carcinoma.

The best alternatives to carcinoid are rated as following:
★★★★★  carcinoma
★★★  pheochromocytoma
★★  adenocarcinoma
★★  mastocytosis
★  paraganglioma
★  sarcoid
★  neuroendocrine cancer
★  small cell carcinoma
  neuroendocrine tumor
  granuloma
  neuroendocrine

Your alternative for carcinoid is not listed? Suggest!
Speaking about carcinoid, one probably shouldn't forget about rupture.

Other search terms related to carcinoid and their ratings are:
★★★★★ rupture
You have in mind a companion for carcinoid and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of carcinoid in all years. Click on graph for more.
carcinoid
carcinoma
pheochromocytoma