Medicine All of the following statements about carcinoid syndrome are true except A Atypical carcinoid syndrome is usually produced by foregut carcinoids B Plasma serotonin levels are normal in Atypical carcinoid syndrome C Midgut carcinoids have high serotonin content D Foregut carcinoids are usually argentaffin positive π‘ Explanation All of the following statements about carcinoid syndrome are true except β Correct Answer: D. Foregut carcinoids are usually argentaffin positive