Psammomatous calcifications in thyroid oncocytic (Hürthle cell) follicular tumors

Ronen, Natali; Suster, David

doi:10.1016/j.anndiagpath.2022.152061

Cited by 1 publication

(1 citation statement)

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“…As defined, psammoma bodies are small, round to flower-contoured lamellated calcium deposits that can occur in various neoplastic processes throughout the body such as PTC, serous ovarian carcinoma, meningioma, duodenal neuroendocrine tumors, and papillary renal cell carcinoma, to name a few. In thyroid cytopathology, the finding of psammoma bodies may indicate a PTC, but it is important to know that other, non-PTC lesions may occasionally can harbor psammoma bodies, such as oncocytic thyroid tumors, thyroid follicular nodular disease, and CLT [63][64][65].…”

Section: Psammoma Bodiesmentioning

confidence: 99%

Pitfalls in Thyroid Fine-Needle Aspiration Cytopathology: An Approach to Atypical Findings

Juhlin,

Baloch

2023

Acta Cytologica

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Background: Thyroid nodules are prevalent among the general population, thus imposing substantial demands upon healthcare providers to establish effective management paradigms when investigating these lesions. A pivotal component in the diagnostic process involves the cytomorphologic evaluation of fine needle aspiration (FNA) specimens extracted from the nodule under scrutiny. This examination serves the critical purpose of enabling a comprehensive assessment for the risk of either a neoplasm or malignancy, thereby providing the clinical team with the requisite information to render decisions regarding potential surgical intervention and/or a structured clinical follow-up. A subset of FNA specimens obtained from the thyroid gland present a vexing challenge for interpretation and cannot be classified based on cytomorphology as either benign or malignant and are classified as “indeterminate” for neoplasm or malignancy. The indeterminate thyroid FNA diagnosis in the third iteration of the Bethesda classification are termed as "atypia of undetermined significance" (AUS). Summary: The thyroid FNA specimens classified as “atypical” constitutes a perplexing category, necessitating considerations such as repeated cytological evaluations, supplementary molecular analyses, diagnostic lobectomy, or vigilant surveillance. This review article draws upon the most recent Bethesda classification guidelines and delineates various potential pitfalls encountered during the interpretation of atypia observed in thyroid fine needle aspiration and histopathologic counterparts. Additionally, it proffers strategic algorithms devised to effectively navigate these diagnostic challenges.

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Section: Psammoma Bodiesmentioning

confidence: 99%