een centrale tumor met laag cellen-aantal,
(Lower severity cancers (grade 1, low grade) tend to grow quite slowly. They look fairly similar to normal cells of the same tissue type (well-differentiated), are less aggressive than higher-grade cancer cells and are less likely to spread.
http://diseases-conditions.blurtit.com/68073/what-does-low-grade-cancer-mean-
pppd: een Pylorus-preserving pancreatico-duode-nectomie(operatie) inderging waarbij het zichtbaar weefsel werd verwijderd.