1 on/under pain of death idiom. 2  a pain in the arse/backside idiom. 3  a pain in the ass/butt, at a pain in the arse/backside idiom.  a pain (in the neck) idiom.
In addition to the differences in replication method, transmission risk is higher with Hep B as it can be sexually transmitted, whereas generally not with Hep C. The large majority of adult patients exposed to Hep B clear it, whereas with Hep C adults who are exposed and clear are the minority.
There are two main differences between FAP and HNPCC, and they include: 1  Number of genes mutated. In FAP, there is only one gene, the APC gene, which is abnormal. 2  Presence of polyps, or growths that can become cancer. FAP is characterized by the presence of more than 100 benign polyps.