Figure 1.

Ultrasound examination of the spleen from 2016 to 2023. (A) Ultrasound examination in 2016 indicated the parenchymal echo of spleen was uniform, and multiple punctiform strong echoes could be detected internally, with the maximum being about 3 mm, some of which were accompanied by the comet–tail sign; (B) Colorful ultrasound examination in 2020 showed that the number of punctiform strong echoes in the splenic parenchyma increased significantly compared with 2016, and the diameter increased slightly; (C, D): Ultrasound examination in 2021 demonstrated that the strong echoes in the splenic parenchyma have increased to the maximum diameter of 3.4 mm; (E, F): Ultrasound examination in 2023 indicated that the strong echoes in the splenic parenchyma increased significantly, with a maximum diameter of 3.7 mm.