Normal Thyroid

Kharchenko, V P; Kotlyarov, Peter M.; Mogutov, Mikhail S.; Alexandrov, Yury K.; Sencha, Alexander N.; Patrunov, Yury N.; Belyaev, Denis V.

doi:10.1007/978-3-642-12387-0_4

Cited by 1 publication

(2 citation statements)

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“…FNA-washout PTH measurements were selectively obtained for central neck lesions to rule out parathyroid lesions. The parathyroid lesions were suspected when the lesions showed typical US features of parathyroid cyst or parathyroid adenoma [ 8 , 19 ] and when well-defined, round or oval, and isoechoic to hyperechoic small lesions were observed at the anatomical location of the PTG [ 10 , 11 ]. The FNA needle sample was rinsed using a 23-gauge needle with 1 mL saline and was assayed for thyroglobulin and PTH levels.…”

Section: Methodsmentioning

confidence: 99%

“…The US features of normal PTGs have been rarely investigated and have not yet been established. The echogenicity of normal PTGs was considered hypoechoic [ 7 , 8 ] or isoechoic to hyperechoic [ 9 , 10 ] compared to the thyroid gland. A recent study by Xia et al [ 11 ] reported that most of the presumed PTGs detected on intraoperative US or percutaneous US exhibited hyperechogenicity.…”

Section: Introductionmentioning

confidence: 99%

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US features of normal parathyroid glands: a comparison with metastatic lymph nodes in thyroid cancer

Kim

Noh

2023

Ultrasonography

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This study aimed to determine the ultrasound (US) features of normal parathyroid glands (PTGs) and to evaluate whether normal PTGs can be differentiated from metastatic lymph nodes (LNs) of thyroid cancer.Methods: This retrospective study included 10 normal PTGs and 95 metastatic LNs from thyroid cancer showing suspicious US features. The echogenicity, echotexture, echogenic foci (calcification), cystic change, abnormal vascularity, shape, and locations were retrospectively assessed and compared between normal PTGs and metastatic LNs. Results:The echogenicity of normal PTGs was significantly different from that of metastatic LNs (p <0.001). Normal PTGs exhibited marked hyperechogenicity (100%), homogeneous echotexture (80%), focal intraglandular hypoechogenicity (20%), ovoid shape (90%), and focal cystic change in one case (10%). The echogenicity of metastatic LNs was markedly hyperechoic (0%), moderately hyperechoic (15.8%), mildly hyperechoic (53.7%), and hypoechoic (28.4%). The size and L/S ratios of normal PTGs were significantly smaller and larger than those of metastatic LNs (p≤0.009 and p=0.022, respectively). Conclusion:Marked hyperechogenicity was found only in normal PTGs and small ovoid markedly hyperechoic structures in the paramedian central neck characterizes normal PTGs. Normal PTGs may be differentiated from metastatic LNs of thyroid cancer.

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Section: Methodsmentioning

confidence: 99%