There are over 300 different types of cancer. A cancer registrar is specially trained in how to correctly gather the data from the medical record and to code and classify it for research and strategic planning. From time to time they will come across a type of cancer they may not be as familiar with as compared to cancers like lung, colon, prostate, breast, etc. Having a resource like this one published by the National Cancer Institute (NCI) is very helpful.
