SS  Vol.2 No.2 , April 2011
Sentinel Lymph Node Biopsy as Guidance for Lateral Neck Dissection in Patients with Papillary Thyroid Carcinoma
Author(s) Yoshifumi Ikeda
Abstract
Introduction: The surgical management of lateral lymph nodes in differentiated thyroid carcinoma is controversies. Therefore, we analyzed whether sentinel lymph nodes (SLN) biopsy of the first draining nodes in the jugulo-carotid chain is an accurate technique to select patients with true-positive but nonpalpable lymph nodes for selective lateral node dissection. Materials and Methods: From January 2009 to December 2009, 12 patients with solitary papillary carcinoma measuring 2 cm by ultrasonography were included in this study. After the thyroid gland was exposed to avoid injuring the lateral thyroid lymphatic connection, approximately 0.2 ml of 5mg/ml indocyanine green was injected into the parenchyma of upper and lower thyroid gland. Some stained lymph nodes in the jugulo-carotid chain could be identified following the stained lymphatic duct and dissected as the SLN. After that, thyroidectomy with modified neck dissection was performed. Results: The mean tumor size was 22.1 ± 4.6 mm. Identification and biopsy of stained SLN in the ipsilateral jugulo-carotid chain was successful in all 12 cases. In 6 cases, histopathological analysis of SLNs revealed metastases of the papillary thyroid carcinoma. Among them, 2 cases had additional metastatic lymph nodes in the ipsilateral compartment. Of the 6 patients who had negative lymph node metastasis (LNM) in SLNs, all patients had negative LNM in the ipsilateral compartment. Conclusions: The method may be helpful in the detection of true-positive but nonpalpable lymph nodes and may support a decision to perform a selective lateral node dissection in patients with papillary thyroid carcinoma.

Cite this paper
nullY. Ikeda, "Sentinel Lymph Node Biopsy as Guidance for Lateral Neck Dissection in Patients with Papillary Thyroid Carcinoma," Surgical Science, Vol. 2 No. 2, 2011, pp. 57-61. doi: 10.4236/ss.2011.22012.
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