Review Article
Malignant Melanoma
| Primary tumour staging (T) |
| Tx | Primary tumour is not identify | Tis | In situ melanoma | T1 | 1.00 mm | T1a | Without ulceration, without mitosis | T1b | With ulceration or mitotic rate ≥ 1 mm2 | T2 | 1.01–2.00 mm | T2a | Without ulceration | T2b | With ulceration | T3 | 2.01–4.00 mm | T3a | Without ulceration | T3b | With ulceration | T4 | 4.00 mm | T4a | Without ulceration | T4b | With ulceration |
| Lymph node status (N) |
| N1 | One node involved | N1a | Micrometastases | N1b | Macrometastases | N2 | Two or Three nodes affected | N2a | Micrometastases | N2b | Macrometastases | N2c | Intransit metastases/satellites without metastatic nodes | N3 | Four or more nodes or matted nodes or intransist metastases/satellites with metastastic nodes |
| Distant metastases (M) |
| M1a | Distant skin, subcutaneous or nodal metastases with normal LHD levels | M1b | Lung metastases with normal LDH levels | M1c | All over visceral metastases or any distant metastases with elevated LDH levels |
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