Case # 

Age Range (Years) 

Mean Age (Years) 

Gender 

Side of Body

Sites 

Pagetoid Squamous Cell Carcinoma in Situ

15 

43-94 

72.7 

Male: 11 

Female: 4 

8 left, 7 right

3 neck, 2 ear/peri-auricular, 4 face, 4 arm, 1 leg, 1 hand 

Collision Tumor (Pagetoid Squamous Cell Carcinoma in Situ and Extramammary Paget’s Disease) 

2

65-81

73

Male: 2 

Female: 0 

2 right

1 hand, 1 arm 

Paget’s Disease in the Breast 

3

42-78

72

Male: 0 

Female: 3 

2 left, 1 right

2 nipple, 1 areola

Extramammary Paget’s Disease

11

51-87

75.2

Male: 5 

Female: 6 

2 left, 7 right, 2 midline

3 face, 3 arm, 3 genital, 1 gluteal, 1 leg

Melanoma in Situ

15

53-88

74.3

Male: 9

Female: 6

6 left, 7 right, 2 midline

7 face, 4 scalp, 2 arm, 1 shoulder