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Table 2 Clinical features of patients with melanoma and Histologic aspects of their tumors

From: Skin pigmentation polymorphisms associated with increased risk of melanoma in a case-control sample from southern Brazil

Mean age at diagnosis (SD)

53.72 (15.5)

Breslow thickness/TNM Staginga

n (%)

 in situ/ Tis

26 (22.6)

 ≀ 1.0 mm/ T1

41 (35.6)

 1.01–2 mm/ T2

23 (20)

 2–4 mm/ T3

14 (12.2)

 > 4 mm/ T4

11 (9.6)

Histological subtype

 Acral lentiginous

2 (1.8)

 Superficial spreading

78 (72.2)

 Nodular melanoma

20 (18.5)

 Lentigo maligna

8 (7.4)

Multiple primary melanoma

 Yes

8 (6.7)

 No

112 (93.3)

Family History of melanoma

 Yes

19 (15.8)

 No

101 (84.2)

  1. Abbreviations: SD standard deviation, TNM classification of malignant tumours
  2. aThe Breslow thickness and TNM Staging according to National Comprehensive Cancer Network (NCCN) guidelines version 1.2011