Priya B, Spadigam A, Dhupar A, Syed S. Tagging the pre-metastatic node in oral cancer: A cross-sectional study.
J Cancer Res Ther 2023;
19:S645-S648. [PMID:
38384033 DOI:
10.4103/jcrt.jcrt_287_22]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 07/20/2022] [Indexed: 02/23/2024]
Abstract
INTRODUCTION
Lymph node involvement is the first indication of spread of oral squamous cell carcinoma (OSCC) and it is also a most significant prognostic factor. Lymph nodes show various tumor-induced histological changes preceding actual metastasis, viz. increased vascularity, follicular hyperplasia and desmoplasia which leads to pre-metastatic niche formation. This pre-metastatic niche primarily provides a favorable microenvironment to for the survival and subsequent growth of cancer cells within the lymph node.
AIM
A retrospective study to evaluate carcinoma-induced changes in lymph nodes harvested from radical neck dissection in OSCC patients.
OBJECTIVES
1) To evaluate cancer-induced histological changes in positive and negative lymph nodes in OSCC patients. 2) To look for common histopathological changes in both pre-metastatic and metastatic lymph nodes.
MATERIALS AND METHODS
Forty lymph nodes harvested from seven OSCC patients were sectioned and stained (Hematoxylin-Eosin) for documentation of histologically evident morphological and functional alterations. The Chi-square test was applied between the non-metastatic and metastatic lymph nodes findings and a statistically significant difference was seen.
RESULTS
Sections from 28 negative nodes showed changes associated with pre-metastatic niche conditioning whereas, 12 sections exhibit frank metastases.
CONCLUSION
The modified immunological responses and remodeling of the vasculature are the most common histologic tumor-induced pre-metastatic changes. This study reviewed and categorized these histological changes that point to pre-metastatic niche conditioning of lymph nodes.
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