I was asking a question on math.SE and therein I wanted to mention that the question has arisen from a previously asked question.
I want to not write it that way but using a word that is better than (more apt than) "follow-up" question. As follow-up question takes in more clarification/explanation for the previously asked question.
But in my case, the resolution of the previous question has given "birth" to the new question. So, maybe "baby question" but putting this too doesn't feel right.
(Note: I have included both [word-choice] and [phrase-request] as I don't know which one would be fit/more suitable to my case.)