The ligament of Marshall is an epicardial vestigial fold that contains the vein of Marshall and a myocardial sleeve called the Marshall bundle (MB). If the MB epicardial connections bypassing endocardial mitral isthmus (MI) are present, it should be blocked to achieve a complete MI block. We report the first case to create the MB conduction block by disconnecting the coronary sinus–MB connections.

Microgliomatosis (Russell, Marshall, and Smith, 1948) or primary reticulosis of the brain (Miller and Ramsden, 1963) is usually considered a pathological curiosity and the diagnosis has almost invariably been made on necropsy material. Yet the structure of the tumour suggests that it may be radiosensitive and every effort should therefore be made to reach a diagnosis during life. In reporting a...

Chris Marshall Chris Marshall, who died on August 8 at age 66, was a world-renowned cell biologist best known for his pioneering contributions to oncogene research and to cell signaling via GTPases, especially to our understanding of tumor cell signaling through the Ras-Raf-Mek-Erk pathway. He spent the whole of his independent research career at the Chester Beatty Laboratories of the Institute...