TNM staging

By Mia Wangsmo Steffenssen MD, Mike Mikkelsen Lorenzen, MD and Pia Sjøgren MD Anatomic stage/prognostic groups Primaty tumor (T) Tx Primary tumor cannot be assessed (ie, curretaged or severely regressed melanoma) T0 No evidence of primary tumor Tis Melanoma in situ T1 Melanoma ≤ 1.0 mm in thicknessT