The diagnostic accuracy of diffusion weighted magnetic resonance (MR) imaging for discrimination of malignant from benign cervical lymphadenopathy in head and neck tumours using histopathology as the reference standard
Journal Title: International Journal of Medical Research and Review - Year 2017, Vol 5, Issue 12
Abstract
Head and neck cancers accounts for maximum number of cancer cases in Indian hospital settings. Involvement of neck nodes is a very important prognostic factor of its outcome. Differentiation between benign and metastatic lymphadenopathy often presents a diagnostic challenge with conventional imaging techniques. Diffusion-weighted imaging (DWI) has emerged as a powerful non-invasive imaging technique that is capable of characterisation of these lesions as benign or malignant with the help of apparent diffusion coefficient (ADC) maps. Aim: The aim of this cross-sectional study was to determine the diagnostic accuracy of DWI to differentiate benign from malignant cervical lymph nodes in head and neck tumours, subsequently confirming the results using histopathology as the reference standard. Materials and Methods: The cross-sectional study was conducted on 60 patients of either age or sex with enlarged neck lymph nodes over a period of 2 years, subsequently these patients underwent DW MRI imaging followed by histopathology of either neck dissection specimen or core biopsy or US guided FNAC as a part of the study. Results: Out of 60 patients, 41(68.33 percent) cases came out as malignant and 19 (31.67 percent) cases came out as benign. The results obtained were 36 true positives, 4 false positives, 15 true negatives and 5 false negatives. The overall sensitivity of DWI for differentiating malignant from benign cervical lymphadenopathy was 87.80% with specificity of 78.95%. The positive predictive value and negative predictive value were 90.00% and 75.00% respectively. The best ADC threshold value for distinguishing benign and malignant nodes was 1.005 × 10-3 mm2/sec. Conclusion: DWI is an important tool to differentiate benign vs malignant lymphadenopathy and helps in guiding the clinician to treat these nodes accordingly.
Authors and Affiliations
Manoj Mathur, Vikas Duhan, Rajiv Kamal Gupta, Saryu Gupta, Navkiran Kaur, Aditi Mathur
Keywords
Related Articles
- EP ID EP277645
- DOI -
- Views 150
- Downloads 0
Antimicrobial resistance pattern of faecal Escherichia coli isolates: story of antibiotic use and misuse
Introduction: Antimicrobial resistance is a major challenge of concern for treating patients. Emergence of antibiotic resistance among hospitalized patients has received considerable emphasis, while multi drug resistance...
Clinical features, visual outcome and association with systemic diseasein patients with episleritis and scleritis. A study of 50 eyes
Introduction: Episcleritis and scleritis are inflammatory disorders which can have an acute presentation and are frequently encountered by primary care practitioners.Episcleritis is a benign, self-limited disease that re...
Endoscopic exploratory tympanotomy findings in conductive hearing loss: a surgical review
Background: Conductive hearing loss continue to remain undiagnosed in a large number of patients with intact membrane. Endoscope assisted tympanotomy provides an alternative technique for diagnosis and also facilitates...
A case report on and chronic calcific pancreatitis primary systemic amyloidosis with symptomatic gastric involvement
Systemic amyloidosis is a disorder characterized by extracellular deposition ofamyloid in various organs and tissues including the gastrointestinal tract, kidney, heart, and liver.Gastric involvement occurs in 8–12% of p...
Comparison of i-gel with LMA ProSeal for ease of insertion in adultanaesthetised paralysed patients: a prospective randomized trial
Background: i-gel,a recently developed non-inflatable supraglottic airway device, a suitable better alternative to cuffed inflatable suprglottic airway device like LMA ProSeal.Aim and objectives: This study aimed to comp...