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Table 4 Disease stage and disease-free period

From: Head and neck cutaneous melanoma: 5-year survival analysis in a Serbian university center

Stage Number of patients Mean DF (months) Location of metastasis Number of patients Period until the occurrence of metastasis (months)
IA 17 57.58 N 1 19
IB 28 33.89 M 2 2–60
N 19
IIA 22 21.81 M 5 6–50
N 13
IIB 7 19 M 2 6–40
N 5
IIC 9 11 M 4 4–20
N 5
III 22 9 M 16 1–32
N 6
IV 11 0 N/A N/A
Total 116 N/A M 29 N/A
N 49
  1. DF disease free, M parenchymal metastases, N lymphogenic metastases