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Related Concept Videos

Skin Cancer01:30

Skin Cancer

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Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
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Related Experiment Video

Updated: Jan 3, 2026

A 3D Organotypic Melanoma Spheroid Skin Model
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Melanoma pathology reporting and staging.

Richard A Scolyer1,2,3, Robert V Rawson4,5,6, Jeffrey E Gershenwald7

  • 1Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia. richard.scolyer@health.nsw.gov.au.

Modern Pathology : an Official Journal of the United States and Canadian Academy of Pathology, Inc
|November 24, 2019
PubMed
Summary

Accurate melanoma diagnosis relies on pathology reports detailing prognostic factors like tumor thickness and ulceration. The 8th edition AJCC staging system refines criteria, emphasizing precise measurements for better patient risk stratification and management.

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Area of Science:

  • Dermatopathology
  • Oncology
  • Cancer Staging

Background:

  • Melanoma diagnosis and prognosis can be challenging.
  • Accurate pathological assessment requires detailed reporting of diagnostic and prognostic parameters.
  • Disease staging is crucial for risk stratification and guiding patient management.

Purpose of the Study:

  • To review the key pathological prognostic parameters for melanoma.
  • To discuss the changes in the 8th edition American Joint Committee on Cancer (AJCC) Melanoma Staging System.
  • To highlight the importance of accurate reporting for melanoma patient management.

Main Methods:

  • Review of established melanoma prognostic parameters.
  • Analysis of the 8th edition AJCC Melanoma Staging System criteria.
  • Discussion of changes in tumor thickness and mitotic rate reporting.

Main Results:

  • Tumor thickness and ulceration remain primary T category criteria.
  • T1b melanomas are redefined based on thickness and ulceration status.
  • Mitotic rate, though removed from T category, is a critical prognostic factor.
  • Tumor thickness reporting is now recommended to the nearest 0.1 mm.

Conclusions:

  • Pathologists must document key prognostic factors for melanoma.
  • The 8th edition AJCC staging system provides refined criteria for melanoma.
  • Continued research into molecular markers may enhance future personalized prognostic estimates.