It has come to my attention quite a while ago, starting with my noticing of NGC 5474, one of Messier 101's many satellite galaxies, that there seems to be a rare but surprisingly common type of galaxy I have taken to calling NGC 5474-type galaxies for lack of a better name.
The characteristic feature of these galaxies is an active starforming spiral galaxy, with the disk offset from the nucleus, often in the form of an apparent single arm branching from the core.
Although I remember seeing far more examples, here are some ones I have managed to find from earlier:
I wonder what could be causing the unusual shape of these galaxies? NGC 5474's shape is caused by Messier 101, but UGC 11027 doesn't have anything large in the vicinity!