Labels:text | screenshot | black and white | black | font | document OCR: ind ten perThe carcinoid syndrome occurs with arc ociation cent of carcinoid tumours, usually in ass ably in the with midgut tumours, and almost invar from the presence of hepatic metastases. It results erotonin) secretion of 5-hydroxytryptamine (5HT: ces such as and a variety of other vasoactive substar nd histamine, bradykinins, prostaglandins substance P. e diarrhoea The cardinal features of the syndrome a and may be and flushing. The diarrhoea is secretory day, and profuse, with passage of several litres per te there are occasionally associated electrol disturbances. It may also be associated w cramping abdominal pain,