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The American Thoracic Society has standardized the nomenclature of lymph nodes in the chest. [29] There are fourteen numbered nodal stations. Lymph nodes considered to be in the mediastinum are stations 1–9, which are thus potential N2 or N3 locations, while stations 10-14 are hilar and peripheral nodes, and thus potential N1 locations.
In one study, the lifetime risk of recurrence was 20% for smaller (<2 cm) tumors without lymph node metastasis. Larger tumors without lymph nodes had 38% risk of recurrence. Presence of lymph nodes in tumors of any size showed 62% and 86% risk of recurrence in patients with 1-3 and >4 positive lymph nodes, respectively.
Each woman has a different number of lymph nodes in her body, so determining how many nodes to remove is based on location, rather than number. [4] The lymph nodes serve as a filtering system for the lymphatic system, so it is important to preserve as many as possible, while also ridding the body of all cancer cells. [citation needed]
Whether a cancer is designated as Stage II or Stage III can depend on the specific type of cancer; for example, in Hodgkin's Disease, Stage II indicates affected lymph nodes on only one side of the diaphragm, whereas Stage III indicates affected lymph nodes above and below the diaphragm. The specific criteria for Stages II and III therefore ...
Computed tomography (CT) that is specifically aimed at evaluating lung cancer includes the chest and the upper abdomen. This allows for evaluation of other relevant anatomic structures such as nearby lymph nodes, adrenal glands, liver, and bones which may show evidence of metastatic spread of disease. [4]
[29] [30] Lymph node staging depends on the extent of local spread: with the cancer metastasized to no lymph nodes (N0), pulmonary or hilar nodes (along the bronchi) on the same side as the tumor (N1), mediastinal or subcarinal lymph nodes (in the middle of the lungs, N2), or lymph nodes on the opposite side of the lung from the tumor (N3). [30]
A new type of blood test can predict if breast cancer will come back years before it shows up on scans, paving the way for treatment to start before it becomes incurable. ... the blood test ...
[3] [13] [14] Diagnosis, if enlarged lymph nodes are present, is usually by lymph node biopsy. [1] [2] Blood, urine, and bone marrow testing may also be useful in the diagnosis. [2] Medical imaging may then be done to determine if and where the cancer has spread. [1] [2] Lymphoma most often spreads to the lungs, liver, and brain. [1] [2]
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