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Supplementary Figure 5 from Imaging of Human Lymph Nodes Using Optical Coherence Tomography: Potential for Staging Cancer

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posted on 2023-03-30, 20:14 authored by Robert A. McLaughlin, Loretta Scolaro, Peter Robbins, Saud Hamza, Christobel Saunders, David D. Sampson
Supplementary Figure 5 from Imaging of Human Lymph Nodes Using Optical Coherence Tomography: Potential for Staging Cancer

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ARTICLE ABSTRACT

Histologic assessment is the gold standard technique for the identification of metastatic involvement of lymph nodes in malignant disease, but can only be performed ex vivo and often results in the unnecessary excision of healthy lymph nodes, leading to complications such as lymphedema. Optical coherence tomography (OCT) is a high-resolution, near-IR imaging modality capable of visualizing microscopic features within tissue. OCT has the potential to provide in vivo assessment of tissue involvement by cancer. In this morphologic study, we show the capability of OCT to image nodal microarchitecture through an assessment of fresh, unstained ex vivo lymph node samples. Examples include both benign human axillary lymph nodes and nodes containing metastatic breast carcinoma. Through accurate correlation with the histologic gold standard, OCT is shown to enable differentiation of lymph node tissue from surrounding adipose tissue, reveal nodal structures such as germinal centers and intranodal vessels, and show both diffuse and well circumscribed patterns of metastatic node involvement. Cancer Res; 70(7); 2579–84

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