Comparative Study Of Contrast Enhanced Computed Tomography And Ultrasonography With Colour Doppler In Assessing Thyroid Cartilage Invasion And Strap Muscle Involvement In Laryngeal Carcinoma In A Tertiary Care Hospital In Chengalpattu District, Tamilnadu
Keywords:
laryngeal carcinoma, CECT, US, colour dopplerAbstract
Introduction: Laryngeal cancers account for about one-third of head and neck cancers and 3-6% of cancers in men in India, with over 90% being squamous cell carcinomas. Tobacco smoking and alcohol consumption are major risk factors. CT scans are often used to detect thyroid cartilage invasion, critical for treatment planning, while ultrasonography is a valuable tool for assessing neck pathologies, offering high resolution and safety. It is especially useful for evaluating cancer spread, lymph node metastasis, and involvement of the carotid wall or strap muscles.
Aims and objective: The main aim of this study is to evaluate the effectiveness of CECT with USG findings with colour doppler in assessing the thyroid cartilage invasion and strap muscle involvement in patients of carcinoma larynx.
Materials and methods: In this prospective study, 40 patients referred to our institute underwent US with colour doppler and CECT for staging laryngeal carcinoma. Out of the 40 patients, 34 were males and 6 were females with 23 of them had a history of tobacco usage. Histopathologic results were used as the reference standard for comparison and statistical analysis.
Conclusion: US with colour doppler serves as a reliable imaging modality for evaluating thyroid cartilage invasion in laryngeal carcinomas. It can be used as a complementary tool alongside CECT to definitively detect thyroid cartilage invasion, aiding in treatment planning.
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