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[False-negative cases of axillary ultrasonography: how much size?]
A Kawamoto1, M Kurotsuchi, H Kaise
1Division of Ultrasonud, and Department of Diagnostic Radiology, Tokyo Medical University, Japan.
Purpose/Aim:
1. To review the sonographic criteria of axillary lymph node status in breast cancer patients. 2. To understand imaging pathologic correlations that the false-negative cases of axillary ultrasonography.
Content Organization:
The sonographic criteria, the accuracy of sonographic axillary ultrasonography, imaging pathologic correlations in false-negative cases, measurement of largest malignant focus size in lymph node, classification of ratio of malignant focus size, ratio of micro metastasis.
Summary:
1. Recently, lymph node evaluation that using serial section and immunohistochemical stains makes it difficult to detect imaging modalities. 2. Ultrasonography is limited how to detect the example of sentinel lymph node biopsy non-indications.
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Step 1: Perform hand hygiene and put on clean gloves to maintain infection control and prevent cross-contamination.
Step 2: Prepare the patient by explaining the procedure to ensure understanding and cooperation. Ensure privacy, expose the axilla, and inform the patient that minimal movement is crucial for an accurate reading.
Step 3: Adjust the patient’s clothing to expose only the axilla. It minimizes...