Imaging of thyroid carcinoma with CT and MRI: approaches to common scenarios

Hoang, Jenny K.; Branstetter, Barton F.; Gafton, Andreia R.; Lee, Wai Kwong; Glastonbury, Christine M.

doi:10.1102/1470-7330.2013.0013

Cited by 63 publications

(54 citation statements)

References 43 publications

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“…However, it cannot reliably determine the histology of thyroid cancer. Similarly, in the present case, radiological findings were suggestive of malignant thyroid nodule …”

Section: Discussionmentioning

confidence: 99%

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Medullary carcinoma of thyroid mimicking Hurthle cell neoplasm on cytology: a diagnostic dilemma

Agarwal

Raychaudhuri

Batra³

et al. 2019

Diagnostic Cytopathology

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Medullary carcinoma of thyroid (MCT) is a neuroendocrine neoplasm derived from the parafollicular cells or C cells. It constitutes 5% of thyroid carcinomas. We present a case of 36‐year‐old female with a left lower lobe thyroid swelling since 8 to 9 years. Swelling was smooth, nontender, and moving with deglutition. Contrast‐enhanced computed tomography (CECT) findings were suggestive of malignant thyroid nodule. Fine‐needle aspiration cytology (FNAC) smears were highly cellular comprising predominantly Hurthle cells arranged in sheets, clusters, and follicles with few singly scattered cells. Background was hemorrhagic with scant colloids. An impression of follicular neoplasm or suspicious of follicular neoplasm was given with an additional note mentioning that the possibility of Hurthle cell neoplasm could not be excluded. Left hemithyroidectomy was done and sections showed a well‐circumscribed tumor suggestive of MCT, which was confirmed based on immunohistochemistry for calcitonin and carcinoembryonic antigen. It is difficult to differentiate MCT from Hurthle cell neoplasm. There may be cellular pleomorphism within a single aspirate, but the presence of mixed cell population is a diagnostic pointer for MCT. In the presence of predominant Hurthle cell population, distinguishing these entities by cytomorphology alone is difficult. Hence, clinical findings and histopathology with immunohistochemistry are mandatory in such cases to reach to a correct diagnosis to ensure proper management.

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“…However, it cannot reliably determine the histology of thyroid cancer. Similarly, in the present case, radiological findings were suggestive of malignant thyroid nodule …”

Section: Discussionmentioning

confidence: 99%

“…Similarly, in the present case, radiological findings were suggestive of malignant thyroid nodule. 6 Cytologically the aspirates are moderate to highly cellular. The MCT is characterized mainly by single cells and loose tissue fragments, typically follicular formation is not seen and papillary structures are very rare.…”

Section: Discussionmentioning

confidence: 99%

Medullary carcinoma of thyroid mimicking Hurthle cell neoplasm on cytology: a diagnostic dilemma

Agarwal

Raychaudhuri

Batra³

et al. 2019

Diagnostic Cytopathology

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“…Some study of PTC has grouping PTC based on size (2,7,10,11,13). PTC with <5 mm known as papillary thyroid microcarcinoma (PTMC), in elderly patients, progressivity of lesion was not evident during observation and immediate surgery was not needed (4,11,13).…”

Section: Discussionmentioning

confidence: 99%

“…Incidental findings include masses (often called 'incidentalomas') or anatomic malformations. Incidental thyroid nodular lesions are common and were first identified on CT (2)(3)(4).…”

Section: Introductionmentioning

confidence: 99%

Incidental finding of papillary thyroid carcinoma on CT examination of mandibular lesion: Case report

et al. 2017

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Abstract. The number of significant incidental findings identified on radiographic examinations has increased. In total, 169 patients, 87 males and 82 females, with a mean age of 67.3 years (range, 17-92 years), as well as 65 patients (38.5%), 43 (66.2%) female and 22 (33.8%) male had abnormal findings in the thyroid for one year in our institution. Thyroid nodules are the most common incidental findings on oral and maxillofacial evaluations. Computed tomography (CT) and magnetic resonance imaging (MRI) examination are frequently used to detect thyroid abnormality. The present study reported a case of papillary thyroid carcinoma (PTC) detected following CT and MRI examination of a mandibular lesion. The CT examination of the oral and maxillofacial region included the thyroid, which must be examined carefully to detect various diseases, including PTC. Collaboration between radiologists and clinicians is important to manage these incidental findings.

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“…Además, no requieren de la utilización de contrastes yodados y no radian al paciente. A pesar de ello la RM mantiene un papel secundario en la evaluación de la enfermedad tiroidea, resultando algo más destacable en la valoración de las paratiroides, donde la ecografía presenta más dificultades [6][7][8]. Los estudios de RM suelen estar especialmente indicados en la estadificación del cán-cer de tiroides y de paratiroides, permitiendo valorar mejor la extensión loco-regional de los tumores glandulares, con especial atención en estructuras clave como la tráquea y el esófago, también en la comprobación de signos compresivos y en la evaluación de la posible afectación de las cadenas ganglionares cervicales [9].…”

Section: Introductionunclassified