NCIt definition : Stage 0 includes: 0is: Tis, N0, M0; 0a: Ta, N0, M0. Tis: Penile cancer with a finding
of carcinoma in situ (penile intraepithelial neoplasia [PeIN]). Ta: Penile cancer
with a finding of noninvasive localized squamous cell carcinoma. N0: No lymph node
metastasis. M0: No distant metastasis. (AJCC 8th ed.);