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. 2016 Jan 12;50(2):83–95. doi: 10.4132/jptm.2015.11.23

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© 2016 The Korean Society of Pathologists/The Korean Society for Cytopathology

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 5. — Pericapsular lymph-vascular invasion (LVI) in which tumor cells is not seen in the parenchyma or subcapsular part of lymph node. Should this be classified as metastatic [either pN0(i+) or pN1mi depending on the maximum linear dimension] or LVI? Tumor deposits seen in afferent vessel and not intracapsular or intraparenchymal involvement is technically LVI, a transient step before metastasis into lymph node. Based on College of American Pathologists (CAP) guidelines, capsular LVI is considered metastatic carcinoma and the largest dimension is measured as the size of metastasis. However the 7th edition American Joint Committee of Cancer (AJCC) does not specify this scenario.