How does the MOHS surgeon know to take two layers at one time?
Doctor Answers 2
he would know and therefore shouldn't take 2 layers or stages at once. He may have taken two pieces for one stage which is ok.
Taking Two Layers: What Gives
That's a difficult question to answer. You are right. Generally, you would take one stage and then check the results and if necessary take another. Maybe the assistant meant that the piece of tissue was bisected or cut in half. In that case it would still only be one stage. Maybe there was obvious tumor when the surgeon cut through the tissue and he/she took another specimen, but again that would likely be considered one stage. Best option... talk to the surgeon directly about the situation and see what their explanation is.