Seung-Won Jang MD, Presenter: Nothing to Disclose

Hye Joung Eom MD, Abstract Co-Author: Nothing to Disclose

Myung-Su Ko MD, Abstract Co-Author: Nothing to Disclose

Jeong Hyun Lee MD, PhD, Abstract Co-Author: Nothing to Disclose

Young Jun Choi MD, Abstract Co-Author: Nothing to Disclose

Ragyoung Yoon MD, Abstract Co-Author: Nothing to Disclose

Jung Hwan Baek, Abstract Co-Author: Nothing to Disclose

To compare the diagnostic accuracies of ultrasonography-guided fine needle aspiration (USFNA) and core needle biopsy (USCNB) for detecting malignant tumors of the salivary gland and for tissue-specific diagnosis of benign and malignant tumors in a tertiary hospital

This retrospective study was approved by our institutional review board and informed consents were waived. From 2003 to 2012, 354 consecutive patients underwent USFNA (n = 121) or USCNB (n = 233) for a salivary gland mass. Among them we included 320 patients confirmed either by surgery (n = 248) or clinical follow-up > 1-year (n = 72) after exclusion of non-diagnostic results (n = 13) or follow-up loss (n = 21). We compared the diagnostic accuracies between USFNA and USCNB for discriminating malignant salivary gland tumors and for correct tissue-specific diagnosis of benign and malignant tumors. We also tested any difference between the procedures according to the operator’s experience level.

Non-diagnostic rates were significantly higher in USFNA with 6.7 % (7/104) than USCNB with 2.6 % (6/229), respectively. The overall accuracy of USCNB for diagnosing malignant tumors was significantly higher than that of USFNA (p = 0.026). Correct tissue-specific diagnosis for benign and malignant tumors was in 97 % and 53 % with USFNA and 96 % and 82 % with USCNB. The accuracy for diagnosing malignant tumors was significantly higher with USCNB than USFNA among the results by trainees, but there was no difference among the results by faculty. There was no significant complication needed intervention or hospitalization in our cohort.

USCNB should be the choice for diagnosis of a salivary gland mass because it is better in discriminating malignant tumors from benign and in tissue-specific diagnosis of benign and malignant tumors.

Ultrasonography-guided core needle biopsy is superior to fine needle aspiration in diagnosis of malignant tumors of the salivary gland

Jang, S, Eom, H, Ko, M, Lee, J, Choi, Y, Yoon, R, Baek, J, Comparison of Accuracies between US-guided Fine Needle Aspiration and US-guided Core Needle Biopsy to Detect Malignancy and to Make Tissue-specific Diagnosis of Salivary Gland Tumors.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14017521.html