Ulnar digital compression neuropathy of the Digital nerve in thumb pain caused by splinting. When the inner cables nerve fibres are damaged the part of the cable that is beyond the level of the injury dies leaving an empty tube. In fact, the signal on T2-weighted images is so low that the mass might not be identifiable on fat-suppressed imaging. Two different types of bowler's thumb. This means that there will be many wrong numbers obtained after a repair. The mass is usually mobile, and thickening of the digital nerve may also be appreciated.