The purpose of this study is to study the application of CEUS and SMI technology in superficial lymph node lesions (metastasis, lymphoma, inflammation, etc.), and to provide some diagnostic ideas for non-invasive diagnosis of lymph node lesions.

CEUS and SMI technology were used to evaluated the superficial lymph node lesions (metastasis, lymphoma, inflammation, etc.), and to provide some diagnostic ideas for non-invasive diagnosis of lymph node lesions.

Inclusion Criteria:

1. Age ≥ 18 years old and ≤ 80 years old;
2. Patients with enlarged lymph nodes detected by ultrasound;
3. No contraindications such as hypersensitivity to contrast-enhanced ultrasound;
4. Voluntarily enrolled in this research project

Exclusion Criteria:

• The patient's position cannot be matched during ultrasound examination

  • Treatment history of lesion area: operation, radiotherapy, intervention, etc ③ Patients without informed consent ④ Lack of clinical data (no effective images such as two-dimensional ultrasound, color Doppler, contrast-enhanced ultrasound, micro blood flow imaging, or poor image quality, unable to analyze, unknown pathological results, etc.) ⑤ Lack of follow up information

patients with lymphadenopathy