Accuracy of fine‐needle aspiration cytology in detecting cervical node metastasis after radiotherapy: Systematic review and meta‐analysis

Purpose To define the accuracy of fine‐needle aspiration cytology (FNAC) in diagnosing persistent or recurrent neck metastases in previously irradiated patients. Methods The study was performed according to the PRISMA‐DTA guidelines. Results A total of 382 FNACs were used for calculation of diagnostic accuracy parameters. The overall pooled sensitivity and specificity in detecting malignant nodes were 69.1% (95% CI: 56.3%‐80.7%; I 2 = 79.5%) and...