Odds of a nodule being a lung cancer

I'm seeing someone later today who is not an operative candidate and has a solitary nodule in a place that biopsy is not worth attempting. The shorter question is, isn't there a nomogram somewhere that allows you to enter a few variable about the patient and characteristics of the nodule that will give you an idea of the likelihood that it's a cancer?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Radiation Oncology Source Type: forums