Fig. 4 | Modern Pathology

Fig. 4

From: Prognostic model for patient survival in primary anorectal mucosal melanoma: stage at presentation determines relevance of histopathologic features

Fig. 4

Risk stratification of patients with localized anorectal melanoma using T-categories. Kaplan–Meier plots of group L anorectal melanoma patients only for a disease-specific survival using American Joint Commission on Cancer (AJCC) stage (stage I: T1a to T2a; stage II: T2b to T4b), b overall survival according to the AJCC 8th-edition T-category system (T1a to T4b), c disease-specific survival using modified tumor thickness system (thin: tumor thickness ≤ 1.0 mm [T1]; intermediate: tumor thickness > 1.0–4.0 mm [T2/3]; thick: tumor thickness > 4.0 mm [T4]) and, overall survival for tumor thickness-mitotic rate system (T1: tumor thickness ≤ 2.0 mm and mitotic rate < 2/mm2; T2: tumor thickness > 2.0 mm and mitotic rate ≥ 2/mm2) [40]

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