ArticleCureus2022
Prevalence of Positive Level IIb Lymph Nodes in Tongue Carcinoma: Experience From a Tertiary Care Center in North India.
Article in Cureus, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction Complications during and after dissection of level IIb lymph nodes include spinal accessory nerve (SAN) dysfunction, which results in the limitation of shoulder movements and, thus, hurts the quality of life. The current study aims to know the occurrence of level IIb lymph node positivity in tongue carcinoma. Methods This cross-sectional study was conducted from January 2019 to December 2019 in a tertiary care center in North India. Adult cases with primary ulcer-proliferative growth over the lateral border of the tongue were included in the study. The level IIb lymph node positivity from the postoperative histopathology report was the primary outcome measure of this study. To investigate the potential association of tumor size on level IIb lymph node positivity, we compared the maximum tumor dimensions among the level IIb lymph node-positive and -negative groups. In addition, to analyze the impact of the tumor's invasive nature on level IIb lymph node positivity, we compared the depth of invasion and proportion of cases with muscle involvement among the level IIb lymph node-positive and -negative groups. Lastly, to investigate their concurrent occurrences, we compared the number of level IIb lymph node-positive cases among the level IIa lymph node-positive and -negative groups. Results A total of 39 patients fulfilling the inclusion criteria were included in the study. Only six had positive level-IIb lymph nodes. No significant associations of tumor size, invasion depth, muscle invasion, or involvement of level IIa lymph nodes with the positivity of level IIb lymph nodes were found. However, only three were level IIb lymph node-positive in 28 level IIa lymph node-negative cases. Conclusion Considering the low risk of isolated level IIb lymph node positivity in level IIa lymph node-negative cases, the dissection of level IIb nodes could be omitted during the surgical excision of the tumor. However, radiological investigations detecting metabolic activity should be used in the preoperative period and postoperative follow-up to detect early lymph node involvement and disease recurrence.
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