What are the clinical classifications for conjunctival melanoma?

Updated: Feb 16, 2021
  • Author: Manolette R Roque, MD, MBA, FPAO; Chief Editor: Hampton Roy, Sr, MD  more...
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Answer

Answer

A primary tumor (T) is classified as follows:

  • TX - Primary tumor cannot be assessed

  • TO - No evidence of primary tumor

  • T1 - Tumor(s) of bulbar conjunctiva occupying 1 quadrant or less

  • T2 - Tumor(s) of bulbar conjunctiva occupying more than 1 quadrant

  • T3 - Tumor(s) of conjunctival fornix and/or palpebral conjunctiva and/or caruncle

  • T4 - Tumor invades eyelid, cornea, and/or orbit 

    An aggressive conjunctival melanoma with lid invol An aggressive conjunctival melanoma with lid involvement. Courtesy of Peter Rubin, MD, Director, Eye Plastics Service, Massachusetts Eye & Ear Infirmary, Boston, MA.
    Large conjunctival melanoma that has invaded the o Large conjunctival melanoma that has invaded the orbit. Courtesy of Peter Rubin, MD, Director, Eye Plastics Service, Massachusetts Eye & Ear Infirmary, Boston, MA.

Regional lymph nodes (N) are classified as follows:

  • NX - Regional lymph nodes cannot be assessed

  • N0 - No regional lymph node metastasis

  • N0a - No regional lymph node metastasis, biopsy performed

  • N0b - No regional lymph node metastasis, biopsy not performed

  • N1 - Regional lymph node metastasis

Distant metastasis (M) is classified as follows:

  • MX - Distant metastasis cannot be assessed

  • M0 - No distant metastasis

  • M1 - Distant metastasis


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