<prompt> All are features of Marfans syndrome, EXCEPT:Lens dislocationAortic regurgitationMousy odor urinePneumothorax  <response>: Ans. is c Mousy odour urine Mousy odour urine is a feature of homocystinuriaMarfans syndrome:It is characterized by a triad of:Long thin extremities frequently associated with other skeletal changes such as loose joints and arachnodactyly Reduced vision as a result of dislocation of lensAortic aneurysm 