Is an adenoma and carcinoid polyps the same thing?

No. They are not the same......Adenomas are benign tumors in the colon and carcinoid tumors are not benign.....They could be low grade cancers but usually are not benign; they are cancerous, sometimes aggressive too.
No. A carcinoid polyp is a variant of a neuroendocrine tumor that may be found in the bowel. An adenoma found in the colon is a polypoid lesion that can undergo transformation via c-myc, APC and p53 mutations to form adenocarcinoma of the colon.