Dr. Rassmann:
Your site is an excellent resource. Thanks a bunch.
Is it possible to have a norwood three pattern with no frontal recession? In other words, can deep corner recession alone constitute a Norwood three?
Yes, deep recession in the corners with a normal central or low central hairline can co-exist when the forelock is persistent. This is actually quite common. The forelock is genetically coded differently than the frontal area in some families.