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Transanal endoscopic microsurgery (TEMS)
TEMS is an operation, using a specially designed microscope and instruments, to allow surgery to be performed through the anus (back passage) inside the rectum. It requires no cuts on the outside of the anus or abdomen (tummy).
Sometimes, TEMS is used to remove small cancers from the rectum and so avoiding major surgery. This can be done in very early cancers or considered where the TEMS operation is safer than major surgery.
Amyn Haji leads the service for Early Colorectal Cancer at King's College Hospital and is world expert on assessment, diagnosis and treatment of early colorectal cancer.
Learn more about TEMS - patient information leaflet
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