Regarding malignant carcinoid syndrome, the following statements are true EXCEPT
which one?
a) Malignant carcinoid syndrome occurs in around 50% of those patients with a
carcinoid tumour
b) Fibrosis of heart valves is more commonly seen on the right side of the heart than
the left
c) Carcinoid tumours can produce insulin
d) For a patient to have malignant carcinoid syndrome they are likely to have liver
metastases
e) Carcinoid tumours originating in the appendix are likely to be benign
