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Ultrasound signs of a normal spleen
Medical expert of the article
Last reviewed: 04.07.2025
The spleen should have a uniform homogeneous structure. It is slightly less echogenic than the liver.
Norm for ultrasound of the spleen
Length: The length and width of the organ can be measured in an oblique plane through the hilum of the spleen from the 10th or 11th intercostal space (length <12 cm, width <7 cm). Spleen size correlates better with the patient's height than with his age.
Area: The spleen is visualized along the longitudinal axis at the depth of inspiration. The contact area between the lung and the spleen is the transverse dimension; the longitudinal dimension is measured from the lower pole of the spleen. The diagonal dimension is measured from the lateral edge of the contact area between the lung and the spleen to the medial edge of the spleen.
Norm |
Size (M+CO cm) |
Transverse dimension |
5.5±1.4 |
Longitudinal dimension |
5.8+1.8 |
Diagonal size |
3.7+1.0 |
Spleen length in children (cm) (North American population)
Age / (Months) |
Average (10th-90th percentile) |
Acceptable upper value |
0-3 |
4.5 (3.3-5.8) |
6.0 |
3-6 |
5.3 (4.9-6.4) |
6.5 |
6-12 |
6.2 (5.2-6.8) |
7.0 |
(Years) |
||
1-2 |
6.9 (5.4-7.5) |
8.0 |
2-4 |
7.4 (6.4-8.6) |
9.0 |
4-6 |
7.8 (6.9-8.8) |
9.5 |
6-8 |
8.2 (7.0-9.6) |
10.0 |
8-10 |
9.2 (7.9-10.5) |
11.0 |
10-12 |
9.9 (8.6-10.9) |
11.5 |
12-15 |
10 1 (8.7-11.4) |
12.0 |
15-20 (men) |
10.0 (9.0-11 7) |
13 0 |
15 20 (women) |
11.2 (10.1-12.6) |
12.0 |
Normal Spleen Length (Chinese Population)
Age (years) |
Men |
Women |
0-4 |
5.94±1.18 |
5 77+1.21 |
5-9 |
7.81 + 1.28 |
7.48+1.21 |
10-14 |
9.10+1.41 |
8,7611,10 |
15-19 |
10.04+1.29 |
8.61±1.03 |
20-29 |
9.57±1.0 |
9.08±1.26 |
30-39 |
9.52±1.29 |
8.88+1.28 |
40-49 |
9.38±1.48 |
8.92+1.54 |
50-59 |
8.83+1.33 |
8.25+1.39 |
60-69 |
8.99+1.61 |
8.66+1 50 |
70-79 |
8.60±1.62 |
8.25±1 54 |
80-89 |
7.90+1.85 |
7.59+1.53 |