Publications by authors named "S Ilgan"

Article Synopsis
  • The study investigates how fine-needle aspiration biopsies (FNA) can lead to necrosis in thyroid tumors, making accurate diagnosis challenging, particularly in oncocytic tumors.
  • It includes a cross-sectional analysis of patients from 2011 to 2023, focusing on those with thyroid nodules that exhibited complete or near-complete necrosis, comparing ultrasound (US) features of these cases to controls.
  • Findings reveal that a "necrotic ring" on ultrasound shows high accuracy in predicting FNA-induced necrosis, especially when combined with a lack of blood flow within the nodule.
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Pulmonary carcinosarcomas (PCS) are uncommon and aggressive malignant tumors with epithelial and mesenchymal components and have a worse prognosis than other non-small-cell lung cancers. Metastases of non-thyroidal malignancies to the thyroid are rare. We reported a unique case of isolated thyroidal metastasis of PCS and discussed F-fluorodeoxyglucose (F-FDG) positivity in incidentally found thyroid nodules on F-FDG positron emission tomography scan.

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Objectives: In differentiated thyroid cancer (DTC), radioiodine (RAI) therapy is most frequently employed for remnant ablation or as adjuvant therapy for the remaining disease. The application of RAI to patients classified as intermediate risk (InR) is still a matter of debate. The aim of this study is to analyze the effect of early postoperative risk assessment on RAI use on papillary thyroid cancer patients who are classified as low risk (LoR) or InR.

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Objective: Punctate echogenic foci (PEF)/microcalcifications are thought to represent psammoma bodies (PB) in histopathology. However, there are few and contradictory data on this. Different types of sonographic echogenic microfoci (EMF) are seen in papillary thyroid carcinoma (PTC), and their histopathological equivalents are not clearly known.

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Context: Awareness of typical and atypical ultrasonographic (US) features of parathyroid adenomas (PAs) is crucial since US is the most widely used first-line imaging modality.

Objective: The purpose of this study was to describe the atypical features of PAs on US and other possible factors leading to a false negative examination in a large single-center cohort.

Materials And Methods: The US records of 457 PAs in 445 patients with biochemically proven primary hyperparathyroidism (PHPT) were evaluated in a prospectively maintained database.

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