Breslow Depth Melanoma Stage

Determine melanoma T-stage from Breslow depth: T1 (<=1.0mm), T2 (1.01-2.0mm), T3 (2.01-4.0mm), T4 (>4.0mm), with ulceration and mitotic rate as upstaging factors per AJCC 8th.

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Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Determine melanoma T-stage from Breslow depth: T1 (<=1.0mm), T2 (1.01-2.0mm), T3 (2.01-4.0mm), T4 (>4.0mm), with ulceration and mitotic rate as upstaging factors per AJCC 8th

Each component has a specific meaning:

  • Breslow depth: T1 (<=1 — The breslow depth: t1 (<=1 recorded for the scenario being assessed.

Note: Interpret the breslow depth melanoma result against the thresholds and context described above.

How to Use

Enter the Breslow depth: T1 (<=1 for the scenario you are assessing. Determine melanoma T-stage from Breslow depth: T1 (<=1.0mm), T2 (1.01-2.0mm), T3 (2.01-4.0mm), T4 (>4.0mm), with ulceration and mitotic rate as upstaging factors per AJCC 8th. Use the breslow depth melanoma result to inform your calculation.

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Frequently Asked Questions