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Ultrasonography-Based Thyroidal and Perithyroidal Anatomy and Its Clinical Significance.

Ha EJ, Baek JH, Lee JH - Korean J Radiol (2015)

Bottom Line: For a safe and effective US-guided procedure, knowledge of neck anatomy, particularly that of the nerves, vessels, and other critical structures, is essential.Therefore, the aim of this article was to elucidate US-based thyroidal and perithyroidal anatomy, as well as its clinical significance in the use of prevention techniques for complications during the US-guided procedures.Knowledge of these areas may be helpful for maximizing the efficacy and minimizing the complications of US-guided procedures for the thyroid and other neck lesions.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Ajou University School of Medicine, Suwon 443-380, Korea.

ABSTRACT
Ultrasonography (US)-guided procedures such as ethanol ablation, radiofrequency ablation, laser ablation, selective nerve block, and core needle biopsy have been widely applied in the diagnosis and management of thyroid and neck lesions. For a safe and effective US-guided procedure, knowledge of neck anatomy, particularly that of the nerves, vessels, and other critical structures, is essential. However, most previous reports evaluated neck anatomy based on cadavers, computed tomography, or magnetic resonance imaging rather than US. Therefore, the aim of this article was to elucidate US-based thyroidal and perithyroidal anatomy, as well as its clinical significance in the use of prevention techniques for complications during the US-guided procedures. Knowledge of these areas may be helpful for maximizing the efficacy and minimizing the complications of US-guided procedures for the thyroid and other neck lesions.

No MeSH data available.


Related in: MedlinePlus

Undertreatment of nodule margin to prevent nerve injury.A. On transverse scan, recurrent laryngeal nerve injury could be prevented by undertreating nodule near danger triangle (arrowheads). B. Operators should be familiar with antomical variation in vagus nerve (VN), which is located adjacent to thyroid gland (arrowheads) to prevent nerve injury. CCA = common carotid artery, IJV = internal jugular vein
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Figure 21: Undertreatment of nodule margin to prevent nerve injury.A. On transverse scan, recurrent laryngeal nerve injury could be prevented by undertreating nodule near danger triangle (arrowheads). B. Operators should be familiar with antomical variation in vagus nerve (VN), which is located adjacent to thyroid gland (arrowheads) to prevent nerve injury. CCA = common carotid artery, IJV = internal jugular vein

Mentions: Careful US examination, along with knowledge of US-based thyroid and neck anatomy, is necessary to prevent complications during the US-guided procedures. Nerves of the neck should be thoroughly evaluated for minimally invasive treatment of benign and recurrent thyroid tumors. The danger triangle could remain undertreated because of its close approximation to the RLN, trachea, or esophagus. Any expected location of nerve injuries, particularly for the vagus nerve and middle CSG, could be undertreated (Figs. 21, 22). If a metastatic tumor is adjacent to the nerve, the hydrodissection technique involving injection of a 5% dextrose solution between the nerve and tumor, could be useful for preventing thermal injury (Fig. 23).


Ultrasonography-Based Thyroidal and Perithyroidal Anatomy and Its Clinical Significance.

Ha EJ, Baek JH, Lee JH - Korean J Radiol (2015)

Undertreatment of nodule margin to prevent nerve injury.A. On transverse scan, recurrent laryngeal nerve injury could be prevented by undertreating nodule near danger triangle (arrowheads). B. Operators should be familiar with antomical variation in vagus nerve (VN), which is located adjacent to thyroid gland (arrowheads) to prevent nerve injury. CCA = common carotid artery, IJV = internal jugular vein
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4499539&req=5

Figure 21: Undertreatment of nodule margin to prevent nerve injury.A. On transverse scan, recurrent laryngeal nerve injury could be prevented by undertreating nodule near danger triangle (arrowheads). B. Operators should be familiar with antomical variation in vagus nerve (VN), which is located adjacent to thyroid gland (arrowheads) to prevent nerve injury. CCA = common carotid artery, IJV = internal jugular vein
Mentions: Careful US examination, along with knowledge of US-based thyroid and neck anatomy, is necessary to prevent complications during the US-guided procedures. Nerves of the neck should be thoroughly evaluated for minimally invasive treatment of benign and recurrent thyroid tumors. The danger triangle could remain undertreated because of its close approximation to the RLN, trachea, or esophagus. Any expected location of nerve injuries, particularly for the vagus nerve and middle CSG, could be undertreated (Figs. 21, 22). If a metastatic tumor is adjacent to the nerve, the hydrodissection technique involving injection of a 5% dextrose solution between the nerve and tumor, could be useful for preventing thermal injury (Fig. 23).

Bottom Line: For a safe and effective US-guided procedure, knowledge of neck anatomy, particularly that of the nerves, vessels, and other critical structures, is essential.Therefore, the aim of this article was to elucidate US-based thyroidal and perithyroidal anatomy, as well as its clinical significance in the use of prevention techniques for complications during the US-guided procedures.Knowledge of these areas may be helpful for maximizing the efficacy and minimizing the complications of US-guided procedures for the thyroid and other neck lesions.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Ajou University School of Medicine, Suwon 443-380, Korea.

ABSTRACT
Ultrasonography (US)-guided procedures such as ethanol ablation, radiofrequency ablation, laser ablation, selective nerve block, and core needle biopsy have been widely applied in the diagnosis and management of thyroid and neck lesions. For a safe and effective US-guided procedure, knowledge of neck anatomy, particularly that of the nerves, vessels, and other critical structures, is essential. However, most previous reports evaluated neck anatomy based on cadavers, computed tomography, or magnetic resonance imaging rather than US. Therefore, the aim of this article was to elucidate US-based thyroidal and perithyroidal anatomy, as well as its clinical significance in the use of prevention techniques for complications during the US-guided procedures. Knowledge of these areas may be helpful for maximizing the efficacy and minimizing the complications of US-guided procedures for the thyroid and other neck lesions.

No MeSH data available.


Related in: MedlinePlus