Table 2. Ultrasound features on liver and abdominal symptoms for the 13 patients with PHLE and abdominal symptoms.
| Case | Ultrasound features on liver | Time of PHLE appearance after CEUS | Clinical symptoms |
|---|---|---|---|
| 1 | Diffuse hyperechoic staining | 15 minutes | Persistent abdominal pain, defecate reaction, paleness |
| 2 | Diffuse hyperechoic staining | 1.5 hours | Defecate reaction |
| 3 | Diffuse hyperechoic staining | 30 minutes | Defecate reaction |
| 4 | Diffuse hyperechoic staining | 47 minutes | Mild abdominal discomfort |
| 5 | Diffuse hyperechoic staining | 1 hour 27 minutes | Defecate reaction |
| 6 | Diffuse hyperechoic staining | 3 hours | Abdominal distention and pain, defecate reaction |
| 7 | Tiny hyperechoic spots | 1 hour 14 minutes | Defecate reaction |
| 8 | Diffuse hyperechoic staining | 30 minutes | Nausea, abdominal distention and pain, red rash on the skin of the abdomen |
| 9 | Tiny hyperechoic spots | 32 minutes | Defecate reaction |
| 10 | Diffuse hyperechoic staining | 29 minutes | Abdominal pain, distention, nausea, dizziness, fatigue |
| 11 | Diffuse hyperechoic staining | 30 minutes | Defecate reaction |
| 12 | Diffuse hyperechoic staining | 30 minutes | Nausea, dizziness, fatigue |
| 13 | Diffuse hyperechoic staining | 15 minutes | Abdominal pain, defecate reaction |
PHLE, prolonged heterogeneous liver enhancement; CEUS, contrast-enhanced ultrasound.