# What benefits can be got by applying Graph Convolutional Neural Network instead of ordinary CNN?

What benefits can we got by applying Graph Convolutional Neural Network instead of ordinary CNN? I mean if we can solve a problem by CNN, what is the reason should we convert to Graph Convolutional Neural Network to solve it? Are there any examples i.e. papers can show by replacing ordinary CNN with Graph Convolutional Neural Network, an accuracy increasement or a quality improvement or a performance gain is achieved? Can anyone introduce some examples as image classification, image recognition especially in medical imaging, bioinfomatics or biomedical areas?