Gabrijela Kocjan’s Fine needle aspiration cytology: diagnostic principles and dilemmas is reminiscent of the type of book (For readers of a certain vintage, and this reviewer, Papworth’s “A Primer of Medicine” will come to mind.) that used to be sought out during the interminably long weekend before taking a higher examination: a concise volume, devoid of irrelevant details, that strengthens one’s ability to deal with key issues by providing a …