system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Carcinoid syndrome produces valvular disease primarily of the -
assistant
The correct answer is  Carcinoid hea disease, also known as Hedinger syndrome, is rare affecting at least 20% of patients with carcinoid syndrome. Cardiac involvement in carcinoid disease generally results in right-sided valvular lesions, accompanied by tricuspid insufficiency and pulmonary stenosis. Ref Davidson 23rd edition pg 560