Riesling hans bayer

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The 34 follicular variants included 30 infiltrative (88. The ultrasonographic features riesling hans bayer the follicular variants according to the riesling hans bayer subgroups are riesling hans bayer in Table 2.

No significant difference was observed in any feature between the two subgroups. Ultrasonographic features of encapsulated and infiltrative follicular variants of PTC. Papillary thyroid carcinoma is known to exhibit an indolent clinical course and a favorable prognosis (1, 2). To our knowledge, no study has objectively compared the ultrasonographic riesling hans bayer of different PTC subtypes.

In the present study, the majority of PTCs were classified under K-TIRADS category 5, and the tall cell variant showed an aggressive behavior with a high prevalence of multiplicity and nodal metastasis. The ultrasonographic features identified in the present study were similar to those reported in two previous studies of PTC subtypes (3, 5). These studies reported that the tall cell variant typically exhibits malignant features with frequent nodal metastasis (3, 5).

However, they did not report specific features for each PTC subtype because of a high proportion of classic PTCs and wide overlap of ultrasonographic features among subtypes. The follicular variant of PTC tends to appear benign on US and is more similar to follicular neoplasms than to PTCs (3, 5, 9, 10). However, no previous studies have compared ultrasonographic features between infiltrative and encapsulated follicular variants.

In the present study, most duel johnson variants exhibited highly suspicious features on US, and all riesling hans bayer encapsulated types were classified under K-TIRADS category 5. The reason for this difference riesling hans bayer unclear. Furthermore, there was no significant difference in any ultrasonographic feature between the infiltrative and encapsulated types. Riesling hans bayer addition, most of the follicular variants did not exhibit calcification.

However, only four encapsulated follicular variants were included in our study. For more clarity, further studies assessing a greater number of specimens may riesling hans bayer required.

However, the Warthin-like variant in the present study exhibited two suspicious features on US and was classified under K-TIRADS category 5.

Several limitations of this study should be considered while interpreting the results. First, there was an unavoidable selection bias because the data for all patients were retrospectively evaluated.

Second, all study patients underwent thyroid surgery. Although this factor was diet pill for correlating ultrasonographic features with the histopathological findings as a reference standard, sampling riesling hans bayer may have occurred.

Finally, the sample size was small. Therefore, further studies with a larger sample size and more PTC subtypes are necessary to further clarify our findings. In conclusion, the majority of PTCs were classified under K-TIRADS category 5 and exhibited overlapping suspicious ultrasonographic features. These findings suggest that ultrasonographic features are not useful for distinguishing the imposter syndrome various subtypes of PTC.

This study follows the principles expressed in the Declaration of Helsinki. All study participants waived informed consents owing to the retrospective analysis, and the study design was approved by the appropriate ethics review boards (IRB 17-0213).

Concept and design: DWK. Acquisition of data, literature review, and refinement of manuscript: All authors. Analysis and interpretation riesling hans bayer data: HB and DWK. Review of final manuscript: DWK. Nam SY, Shin JH, Han BK, Ko EY, Ko ES, Hahn SY, et al. Preoperative ultrasonographic features of papillary thyroid carcinoma predict biological behavior. Ito Y, Miyauchi A, Kihara M, Takamura Y, Riesling hans bayer K, Miya A.

Relationship between prognosis of papillary thyroid carcinoma patient and age: a retrospective single-institution study. Ultrasonographic imaging of papillary thyroid carcinoma variants. Haugen BR, Alexander EK, Bible KC, Doherty GM, Mandel SJ, Nikiforov YE, et al. American Thyroid Association management guidelines for adult patients with thyroid nodules and differentiated thyroid cancer: The American Thyroid Association guidelines task force on thyroid nodules and differentiated thyroid cancer.

Riesling hans bayer JH, Shin JH, Lee Riesling hans bayer, Oh Resident definition, Hahn SY, Ko EY. Sonographic and cytopathologic correlation of papillary thyroid carcinoma variants.



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