<prompt> Most common valvular lesion in Carcinoid Syndrome of the Hea is:Aoic StenosisMitral StenosisTricuspid regurgitationAoic regurgitation  <response>: Answer is C Tricuspid Regurgitation Carcinoid syndrome most frequently involves the ventricular aspect of the tricuspid valve. The predominant lesion due to involvement of the tricuspid valve is Tricuspid regurgitation. 