I never said I was a good artist. Yet when I give a lecture I want everyone to understand the concept of melanocytes traveling from the basal layer to the stratum corneum.
Second concept: there are Rete Ridges that are sometimes affiliated with flat skin and other rete ridges affiliated with a ridge. This is sometimes not the case in situations such as any dermatologic condition that might obliterate viewing the dermal epidermal junction. What about a Halo Nevus where the lymphocytic infiltrate is so thick that one cannot tell the melanocytes in the papillary dermis.
Once a pathologist diagnosed a Halo Nevus in the foot. I never heard of a Halo Nevus being present in the foot. I began to question this and I had my Dermatopathology Text by Raymond Barnhill. A Halo Nevus has a great deal of lymphocytes yet the picture on the report showed very little lymphocytic infiltrate. Thus I began to question dermatopathology reports.
Then again chances are it could be a Halo Nevus in the late stages with a decreased lymphocytic infiltrate.