B-Flow Twinkling Sign in Preoperative Evaluation of Cervical Lymph Nodes in Patients with Papillary Thyroid Carcinoma

Figure 1

Metastatic lymph nodes at grayscale examination in patients with papillary thyroid cancer. Absence of echogenic hilum ((a), (b), (c), (d)), abnormal echogenicity ((a), (b), (c)), calcifications (b), cystic change ((a), (b)), and round shape ((c), (d)).

(a)

(b)

(c)

(d)