Eye
Miscellaneous - conjunctiva
TNM staging (pathologic) for melanoma of the conjunctiva

Author: Nat Pernick, M.D. (see Authors page)

Revised: 16 April 2018, last major update September 2013

Copyright: (c) 2004-2018, PathologyOutlines.com, Inc.

PubMed Search: TNM staging for melanoma of conjunctiva pathology

Related Topics: Clinical staging

Cite this page: Pernick, N. TNM staging (pathologic) for melanoma of the conjunctiva . PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/eyeconjTNMmelanoma.html. Accessed October 17th, 2018.

TNM staging (pathologic) of melanoma of the conjunctiva, AJCC 7th edition
Primary tumor (T)
  • pTX: Primary tumor cannot be assessed
  • pT0: No evidence of primary tumor
  • pT(is): Melanoma of the conjunctive confined to the epithelium
  • pT1a: Melanoma of the bulbar conjunctiva not more than 0.5 mm in thickness with invasion of the substantial propria
  • pT1b: Melanoma of the bulbar conjunctiva more than 0.5 mm but not more than 1.5 mm in thickness with invasion of the substantial propria
  • pT1c: Melanoma of the bulbar conjunctiva greater than 1.5 mm in thickness with invasion of the substantial propria
  • pT2a: Melanoma of the palpebral, forniceal or caruncular conjunctiva not more than 0.5 mm in thickness with invasion of the substantia propria
  • pT2b: Melanoma of the palpebral, forniceal or caruncular conjunctiva more than 0.5 mm but not greater than 1.5 mm in thickness with invasion of the substantia propria
  • pT2c: Melanoma of the palpebral, forniceal or caruncular conjunctiva greater than 1.5 mm in thickness with invasion of the substantia propria
  • pT3: Melanoma invades the eye, eyelid, nasolacrimal system, sinuses or orbit
  • pT4: Melanoma invades the central nervous system

  • Note: pT(is) is melanoma in situ (includes the term primary acquired melanosis) with atypia replacing greater than 75% of the normal epithelial thickness, with cytologic features of epithelioid cells, including abundant cytoplasm, vesicular nuclei or prominent nucleoli, or presence of intraepithelial nests of atypical cells
Regional lymph nodes (N)
  • pNX: Regional lymph nodes cannot be assessed
  • pN0: No regional lymph node metastasis
  • pN1: Regional lymph node metastasis present
Distant metastasis (M)
  • cM0: No distant metastasis
  • pM1: Distant metastasis
Stage grouping
  • No stage grouping is presently recommended by AJCC