Histological Peripheral Margins and Recurrence of Melanoma In Situ Treated with Wide Local Excision

Figure 4

Comparison of recurrence and nonrecurrence following MIS excision. (a) Comparison of recurrence and nonrecurrence per body region. There was a statistically significant difference in the face compared to other sites of the body (). (b) Comparison of recurrence and nonrecurrence per MIS subtype. There was no difference in recurrence depending on the MIS subtype (). (c) Comparison of recurrence and nonrecurrence per presence (recurrent lesion, evidence of invasive foci, and regression) or absence of risk factors. There was no difference in recurrence with or without the presence of risk factors (). (d) Comparison of recurrence and nonrecurrence per histological peripheral clearance margin. There was a reduced risk of recurrence with increasing histological peripheral margins (). LM: lentigo maligna; MIS: melanoma in situ; SS-MIS: superficial spreading melanoma in situ.

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