Using Ultrasonography to Evaluate the Relationship between Capsular Invasion or Extracapsular Extension and Lymph Node Metastasis in Papillary Thyroid Carcinomas.

Background: Previous studies have demonstrated that ultrasonography is the recommended imaging modality for preoperative staging of papillary thyroid carcinomas (PTCs). However, only a few studies have kept watch on preoperative evaluation of capsular invasion (CI) or extracapsular extension (ECE) and cervical lymph node metastasis using preoperative ultrasonography. This study aimed to investigate the relationship between the CI or ECE and the cervical lymph node metastasis in PTCs using preoperative ultrasonography and postoperative pathology in Chinese patients.

[Applicable value of ultrasound-guided renal biopsy in diagnosis of kidney diseases].

Objective: To explore the applicable value of ultrasound guidance in percutaneous renal biopsy.

Methods: 168 patients with kidney diseases underwent ultrasound-guided renal biopsy. Pathological examination was conducted.