scholarly journals High-Score US-Suspicious Subcentimeter Thyroid Nodules: What Factors Affect Adequate Sampling of US-Guided Fine-Needle Aspiration Biopsy?

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Yang Li ◽  
Jin Hong Yu ◽  
Ping Jie Du ◽  
Yu Xie ◽  
Sushant Kumar Das ◽  
...  

Background. Fine-needle aspiration biopsy (FNAB) is diagnostic standard for thyroid nodules. However, the influence of adequate sample rate of US-guided FNAB for subcentimeter thyroid nodules is not known well. Objectives. To assess the factors affecting adequate sample rate of US-guided FNAB for subcentimeter thyroid nodules. Methods. Three hundred and forty-nine consecutive US-guided FNAB procedures were performed in 344 patients with subcentimeter thyroid nodules. The adequate sample rate was analyzed for all nodules on the basis of nodule-related and technical factors. The factors affecting adequate sample rate of US-guided FNAB for subcentimeter thyroid nodules were determined by multivariate logistic regression. Results. The adequate sample rate increased with larger nodules (72.7% for 3–6 mm nodules and 84.9% for 7–10 mm nodules (P=0.007)). The adequate sample rate was 63.9%, 81.3%, and 90.6% in nodules with macrocalcifcation, microcalcification, and no calcification, respectively (P<0.001). The adequate sample rate was 71.8% for biopsies performed with a perpendicular needle path and 85.0% with a parallel needle path (P=0.004). The significant factors affecting adequate sample rate of US-guided FNAB for subcentimeter thyroid nodules were nodule size (P<0.001; odds ratio (OR) for 7–10 mm nodules was approximately 3.0 times higher than that for 3–6 mm nodules), calcification (P<0.001; OR for nodules without calcification was approximately 5.3 times higher than that for the nodules with macrocalcification), and needle path (P=0.044; OR for the use of the parallel needle path was about 1.8 times higher than that for the perpendicular needle path). Conclusion. Nodule size, calcification, and needle path were the determinants of sample adequacy. The adequate sample rate was higher in larger nodules, in nodules without calcification, and upon using a parallel needle path for biopsy.

Thyroid ◽  
2009 ◽  
Vol 19 (1) ◽  
pp. 27-31 ◽  
Author(s):  
Dong Wook Kim ◽  
Eun Joo Lee ◽  
Sang Hyo Kim ◽  
Tae Hyun Kim ◽  
Sang Hyub Lee ◽  
...  

PEDIATRICS ◽  
1995 ◽  
Vol 95 (1) ◽  
pp. 46-49
Author(s):  
Stephen S. Raab ◽  
Jan F. Silverman ◽  
Tarik M. Elsheikh ◽  
Patricia A. Thomas ◽  
Paul E. Wakely

Objective. The prevalence of thyroid nodularity in children has been estimated to be 1.8%. The reported prevalence of specific diseases which comprise these nodules is conflicting as evidenced by a reported range of malignancy of 2 to 50% in solitary nodules. In order to better classify pediatric (&lt;18 years old) thyroid disease and evaluate the utility of fine needle aspiration biopsy (FNAB) in this patient population, we retrospectively reviewed 66 FNABs from 64 thyroid nodules and 2 perithyroid lymph nodes from 57 patients. Methodology. Patients: The study was composed of 8 males and 49 females who ranged in age from 1 to 18 years old (mean = 13.1). Design: Surgical and/or clinical follow-up was obtained in all patients. The 66 FNAB diagnoses were initially classified into specific diseases. However, for the purpose of this review, the cases were classified as: 3 insufficient, 51 benign, 8 suspicious, and 4 malignant. Results. There were no "false positives" and one "false negative" (a papillary carcinoma was misdiagnosed as a benign nodule). Overall, 10 patients (18%) had malignant thyroid lesions, including 8 papillary carcinomas and 2 follicular carcinomas. Benign diagnoses included benign nodule, cyst, lymphocytic thyroiditis, granulomatous thyroiditis, hyperplasia, and abscess. Conclusions. The prevalence of malignancy in pediatric patients with thyroid nodules was 18%. We conclude that, because of its high diagnostic accuracy and minimal invasiveness, FNAB is useful in the management of pediatric thyroid nodules.


Cancer ◽  
1988 ◽  
Vol 62 (7) ◽  
pp. 1337-1342 ◽  
Author(s):  
Annette R. Nathan ◽  
Kristen B. Raines ◽  
Yeu-Tsu Margaret Lee ◽  
E. Lawrence Sakas ◽  
Judy M. Ribbing

2017 ◽  
Vol 9 (3) ◽  
pp. 100-103
Author(s):  
Saad Alqahtani ◽  
Saif Alsobhi ◽  
Riyadh I Alsalloum ◽  
Saleh N Najjar ◽  
Hindi N Al-Hindi

ABSTRACT Aim To correlate selected clinical and ultrasonographic (US) characteristics with the final histopathological diagnosis in patients with atypia of undetermined significance (AUS) and follicular lesion of undetermined significance (FLUS), and whether this information can be used in planning the surgical approach. Materials and methods It is a retrospective study including the operated cases of AUS/FLUS from 2011 to 2014 treated at one center. Results This cohort included 87 women and 28 men. To test for independence between categorical variables, the chi-square test was used. There was no significant correlation between age or US variables and final pathological diagnosis. However, final diagnosis of malignancy was higher in men compared with women (64.3 and 41.4% respectively; p = 0.035). Furthermore, a significant association between the diagnosis of repeated fine needle aspiration biopsy (FNAB) and the final pathological diagnosis was noted (benign vs malignant, p = 0.005). Conclusion The FNAB has a significant role in the assessment of thyroid nodules. Our results showed no correlation between age, US variables, and the risk of malignancy. Male gender is associated with higher risk of malignancy. Clinical significance Determining the risk of malignancy and prediction of surgical outcome may help triaging cases for repeat FNA or proceeding to surgery. How to cite this article Alqahtani S, Alsobhi S, Alsalloum RI, Najjar SN, Al-Hindi HN. Surgical Outcome of Thyroid Nodules with Atypia of Undetermined Significance and Follicular Lesion of Undetermined Significance in Fine Needle Aspiration Biopsy. World J Endoc Surg 2017;9(3):100-103.


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