Uninstall a port and ONLY THAT PORT's dependencies?

[Carlo Tambuatco]

Is there a way to uninstall a port and only those ports that are dependencies of just that port?

So I want to uninstall port A and dependencies of A: dep(A) but not dep(A,B,C,…) where 
dep(A,B,C…) are dependencies of A and B and C, etc…

Thanks.