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Distribution of Chronic Arsenic Poisoning Lesions in Exposed Individuals from the Camarones Valley

Table 1 Distribution by Severity
Table 2 Distribution by Age
Table 3 Distribution by Tissue
Table 4 Arsenic Concentration

Table 1
Distribution of Skin Lesions on 27 Individuals with Chronic Arsenic Poisoning and the Presence of Mees Lines in the Nails
back to case

Area
Number
Severe
Moderate
Mild
Total Positive
Trunk
27
8
16
3
100%
Arms
9
0
6
3
33%
Legs
12
1
6
5
44%
Hands
3
0
2
1
11%
Feet
3
1
2
0
11%
Ankles
1
0
0
1
4%
Heads
5
1
3
1
19%
Mees Line Nails
(21)
     
52%
Total
60
11
(18%)
35
(58%)
14
(23%)
 

Table 2
Distribution of Skin Lesions by Age
back to case

Area
4-10 Years
11-15 Years
16-40 Years
Over 40
Trunk
1
1
3
4
Arms
0
0
0
0
Legs
0
1
0
0
Hands and Feet
0
0
0
1
Head
1
0
0
0
Total Lesions
2
2
2
5
Number of Individuals
*7
* 57% Severe
 
14
(14%)
6
(83%)

*Ages 4 to 15 Combined


Table 3
Distribution of Lesions by Tissue
back to case

Tissue
Number with Tissue
Number with Pathology
% Positive
Skin
32
27
84.4
Liver
22
5
22.7
Lung
19
7
36.8
Kidney
19
1
5.3
Heart
11
1
9.1
Intestine
23
1
4.3
Diaphragm
19
1
5.3

Table 4
Arsenic Concentration in Different Tissues (Parts per Million)
back to case

Age
Number
Nails
Ribs
Skin
0-10 Years
5
46.07
4.48
23.28
11-20 Years
6
19.18
2.76
9.90
21-40 Years
5
30.90
1.83
2.92
40 Plus
5
42.38
5.67
11.27

 

Updated October 5, 2009