What is Level VII?

What is Level VII?

Level VII is an important component of central neck dissection for papillary thyroid cancer. Ann Surg Oncol.

What is a level 7 lymph node?

Level VII lymph nodes are defined as lymph nodes in the anterior superior mediastinum and the tracheoesophageal grooves, extending from the suprasternal notch to the innominate artery [10].

Where is lymph node 7 located?

Subcarinal Zone Station 7: Subcarinal Lymph Nodes.—The upper border of station 7 is the carina of the trachea. The lower border of station 7 is the upper border of the lower lobe bronchus on the left and the lower border of the bronchus intermedius on the right.

What are the levels of lymph nodes?

The level system for describing the location of lymph nodes in the neck consists of Level I, submental and submandibular group; Level II, upper jugular group; Level III, middle jugular group; Level IV, lower jugular group; Level V, posterior triangle group; and Level VI, anterior compartment (Figure 1).

Is 7mm lymph node normal?

Non-target lymph nodes measure between 10 and 15 mm and lymph nodes measuring less than 10 mm are considered normal.

What size lymph node is concerning?

Nodes are generally considered to be normal if they are up to 1 cm in diameter; however, some authors suggest that epitrochlear nodes larger than 0.5 cm or inguinal nodes larger than 1.5 cm should be considered abnormal.

Are lymph nodes in lungs?

Intrapulmonary lymph nodes: This refers to lymph nodes that lie within the lungs. These can either be peripheral lymph nodes found in the outer regions of the lungs or hilar lymph nodes found where the major airways (bronchi ) and major blood vessels enter the lungs (called the hilum ).

How many levels of lymph nodes are in the neck?

Lymph nodes in the neck are grouped into levels I-V, corresponding with the submandibular and submental nodes (level I); upper, middle, and lower jugular nodes (levels II, III, IV); and posterior triangle nodes (level V). Refer to the following image. The 6 levels of the neck with sublevels.

What size are cancerous lymph nodes in neck?

Lymph nodes measuring more than 1 cm in the short axis diameter are considered malignant. However, the size threshold does vary with anatomic site and underlying tumour type; e.g. in rectal cancer, lymph nodes larger than 5 mm are regarded as pathological.