Histopathological Evaluation for Tentative Diagnosis of Benign Thyroid Nodules Defined by Ultrasonography and Fine-needle Aspiration Cytology Using Accessory Nodules Resected for Other Purposes

Thyroid ◽  
2011 ◽  
pp. 111222131129009
Author(s):  
Eijun Nishihara ◽  
Takeo Kawai ◽  
Takumi Kudo ◽  
Hisashi Ohta ◽  
Shinji Morita ◽  
...  
2010 ◽  
Vol 54 (1) ◽  
pp. 52-55 ◽  
Author(s):  
Pedro Weslley Rosário ◽  
Saulo Purisch

OBJECTIVE: To report the results of repeat fine-needle aspiration cytology (FNAC) in thyroid nodules with an initial benign cytological diagnosis that grow during follow-up and/or present suspicious ultrasonographic characteristics. SUBJECTS AND METHODS: The sample consisted of 456 patients with 895 nodules. FNAC was repeated after 12 to 18 months in the case of nodules with suspicious ultrasonographic characteristics, irrespective of growth, and when the nodules showed significant growth. RESULTS: Among the 895 nodules examined, 102 (11.4%) presented suspicious ultrasonographic characteristics. The second FNAC revealed malignancy in 18 (17.6%) nodules, including 20% (2/10) of those showing growth and 17.4% (16/92) that did not. Seventy-six (9.6%) of 793 nodules without suspicious characteristics presented growth. Only one case (1.3%) of malignancy was diagnosed by repeat FNAC. CONCLUSIONS: The study suggests ultrasonographic characteristics rather than growth as a criterion for repeat FNAC in the case of nodules with an initial benign cytological diagnosis.


2012 ◽  
Vol 2 ◽  
pp. 23 ◽  
Author(s):  
Sudhir Vinayak ◽  
Joyce A. Sande

Objective: The objective of this study was to describe a reliable ultrasound based index scoring system based on ultraound characteristics to identify benign thyroid nodules and avoid unnecessary fine needle aspiration cytology. Materials and Methods: Patients undergoing ultrasound-guided fine-needle aspiration cytology (FNAC) for thyroid nodules were evaluated prospectively. A total of 284 patients were evaluated from November 2005 to November 2011. There were 284 nodules. Any solid or partly solid focal nodule in the thyroid gland was included in the study. Cysts with no solid component were excluded. We used LOGIQ 9 (GE Healthcare) scanner equipped with a 10--14 MHz linear matrix transducer with color and power Doppler capability. Four US characteristics were evaluated, i.e., nodule margins, echo texture, vascularity, and calcification. Fine needle aspiration (FNA) was performed on all nodules. The nodules were labeled benign or suspicious using an ultrasound index score and the results compared with FNAC. Follicular neoplasms on fine-needle aspiration cytology were further assessed by excision biopsy and histology. Cytology/histology was used as the final diagnosis. Results: In total 284 nodules were analyzed. All the 234 nodules in US labeled benign category were proven to be benign on cytology/histology. Therefore the specificity of ultrasound in labeling a nodule benign was 100%. Twenty of the 50 nodules that were suspicious on US were malignant. The most significant US differentiating characteristics were nodule margins, vascularity, and microcalcification. Conclusion: Our results show that US can accurately characterize benign thyroid nodules using an index scoring system and therefore preclude FNAC in these patients.


F1000Research ◽  
2020 ◽  
Vol 9 ◽  
pp. 23
Author(s):  
Ali I. E. Osman ◽  
Ahmed O. Almobarak ◽  
Asma Kamalaldin Mohammed ◽  
Nouh S. Mohamed ◽  
Mohamed S. Muneer ◽  
...  

Introduction: Fine-needle aspiration (FNA) cytology biopsy of the thyroid gland is an accurate and useful diagnostic tool in the initial evaluation of nodular thyroid lesions. We aimed in this study to determine the cytomorphological patterns of thyroid lesions diagnosed by FNA among Sudanese patients. Methods: A descriptive retrospective, clinic-based study was performed. Cytopathological records of patients that attended the Total Lab Care Clinic in Khartoum-Sudan between January 2016 and December 2017 were reviewed. Results: A total of 1646 patients records were reviewed; 1385 (84.1%) were females and 261 (15.9%) males. A total of 1563 (94.9%) were negative for malignancy, 39 (2.4%) were positive for malignancy, 42 (2.6%) were indeterminate for malignancy and 2 (0.1%) were non-diagnostic. Colloid goiter was seen in 1147 patients (73.4%), benign hemorrhagic cysts were seen in 257, Hashimoto thyroiditis was seen in 77, benign thyroid nodules were seen in 76, keratocysts were seen in 2, thyroglossal duct cysts were seen in 2, thyroid follicular adenoma was seen in 1 and myxedema was seen in 1. For malignant patients; 11 had anaplastic thyroid cancer, 8 had papillary thyroid cancer, 7 had follicular thyroid cancer, 5 had metastatic thyroid cancer, 4 had medullary thyroid cancer, 3 had non-Hodgkin lymphoma and 1 had thyroid follicular adenoma. For those indeterminate for malignancy, 24 had follicular neoplasm and 18 had Hurthle cell neoplasm. Conclusions: Fine needle aspiration cytology for thyroid nodules provides a rapid and non-invasive technique for the evaluation and differentiation between benign and malignant lesions. This study also addresses the increased predominance of benign thyroid lesions among young patients and thyroid malignancy among the 4th decade of life.


2019 ◽  
Vol 70 (1) ◽  
pp. 62-67 ◽  
Author(s):  
Manijeh Mohammadi ◽  
Carrie Betel ◽  
Kirsteen Rennie Burton ◽  
Kevin McLughlin Higgins ◽  
Zeina Ghorab ◽  
...  

Objective To determine the incidence of malignancy, follow-up ultrasound (US), and repeat fine needle aspiration (FNA) in thyroid nodules that have been previously biopsied as benign. Methods This is a retrospective, descriptive study of benign thyroid nodules evaluated by US between 2010-2011. We determined the frequency of follow-up ultrasounds and FNAs, mean years of follow-up, interval between follow-up US, change in nodule size, reasons for repeat FNA (rFNA), frequency of thyroidectomy, and thyroid malignancy during 5 years of follow-up. Results A total of 733 benign thyroid nodules were reviewed in 615 patients. Mean years of US follow-up was 3.47 ± 1.65 years; 275 (37.5%) had no follow-up US; 109 (14.9%) had 1 follow-up US; 93 (12.7%) had 2 follow-up US; and 256 (34.9%) had 3 or more follow-up US. Assessment of thyroid nodule size showed that 215 (28.8%) nodules decreased in size, 145 (19.4%) increased in size by less than 50%, and 91 (12.1%) increased in size by more than 50%. Of the 733 nodules, 17 nodules (2.3%) underwent thyroidectomy for which the pathology result of 9 (1.2%) showed malignancy, and 65 (8.9%) thyroid nodules underwent rFNA. When applying the 2015 recommendations for repeat FNA, 35% were done unnecessarily. Conclusion In our sample of initially benign thyroid nodules, only 9 patients (1.2%) had pathology-proven malignancy after a mean follow-up of 3.5 years. Over 30% of patients had more than 3 rUSs. Decreased interval and frequency of rUS should be considered in future guidelines for thyroid management.


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