Shaggy dogs

Dermatopathology is a terribly interesting field. I'm not sure if I
want to commit to being an expert in this field however. Although, it
probably is one of the higher paying subspecialties. Anyway, during
this month I have been learning from the best and have encountered
some great phrases along the way.

The Shaggy Dog - A case that never ends (due to recuts, slides,
consults, whatever..) Which goes along with the usual definition of
the term which can be used to describe a story that goes on an on with
an anticlimactic end.

The Dog Poop - Termed to describe sneaky melanocytes in the basal
layer which demonstrate cytologic atypia and raise the concern for
melanoma. Basically it's like dog poop in the grass - you don't
notice it until you've stepped in it.

Any other great terms to share?