Molecular Classifier for the Fine Needle-based Assessment of Malignancy Risk in Thyroid Nodules

2018-01-16 09:55:10 | BioPortfolio


This study evaluates the usefulness of molecular classifier to aid the diagnosis of malignancy in the material obtained by fine-needle aspiration biopsy (FNAB) of thyroid nodule. All participants will undergo FNAB with routine cytological assessment and molecular testing. Patients will undergo surgery or be followed-up, according to the clinical guidelines. The diagnostic power of combined molecular/clinical classifier will be compared to prediction based on clinical features only, by investigators blinded to the final diagnosis of surgical assessment.


Currently, the diagnosis of malignancy of thyroid nodule is based on cytological assessment of fine-needle aspiration biopsy (FNAB) classified according to the Bethesda System for Reporting of Thyroid Cytopathology. This does not allow for the definitive diagnosis of cancer in significant proportion of tumors, so called indeterminate nodules (Bethesda class III, IV and V). These patients require surgery to establish a definitive diagnosis, leading to unnecessary operating procedures in at least 2/3 of subjects.

Molecular classifiers could significantly improve thyroid preoperative diagnostics, although they are not optimal and provide either high specificity to the detriment of low sensitivity or conversely, relatively low specificity with high sensitivity. The classifiers could be based on gene expression or mutations present in FNAB specimen.

In the present study the investigators plan to assess the improvement of classification power by molecular gene-expression-based multi-feature classifier when added to standard clinical parameters indicating the risk of malignancy (Bethesda class, tumor size, patient age and sex). Participants will undergo FNAB with prospective collection of material for molecular testing and simultaneous preoperative recording of all clinical parameters. The patients will be operated on or followed-up according to the clinical guidelines. The comparison of a predictive power of clinical criteria to the combined clinical-molecular classifier will be carried out by the group of investigators blinded to the results of final surgery.

Study Design


Thyroid Nodule


Maria Sklodowska-Curie Memorial Cancer Center, Institute of Oncology




Maria Sklodowska-Curie Memorial Cancer Center, Institute of Oncology

Results (where available)

View Results


Published on BioPortfolio: 2018-01-16T09:55:10-0500

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Medical and Biotech [MESH] Definitions

An enlarged THYROID GLAND containing multiple nodules (THYROID NODULE), usually resulting from recurrent thyroid HYPERPLASIA and involution over many years to produce the irregular enlargement. Multinodular goiters may be nontoxic or may induce THYROTOXICOSIS.

A small circumscribed mass in the THYROID GLAND that can be of neoplastic growth or non-neoplastic abnormality. It lacks a well-defined capsule or glandular architecture. Thyroid nodules are often benign but can be malignant. The growth of nodules can lead to a multinodular goiter (GOITER, NODULAR).

A small round or oval, mostly subcutaneous nodule made up chiefly of a mass of Aschoff bodies and seen in cases of rheumatic fever. It is differentiated from the RHEUMATOID NODULE which appears in rheumatoid arthritis, most frequently over bony prominences. (From Dorland, 27th ed)

An aggressive THYROID GLAND malignancy which generally occurs in IODINE-deficient areas in people with previous thyroid pathology such as GOITER. It is associated with CELL DEDIFFERENTIATION of THYROID CARCINOMA (e.g., FOLLICULAR THYROID CARCINOMA; PAPILLARY THYROID CANCER). Typical initial presentation is a rapidly growing neck mass which upon metastasis is associated with DYSPHAGIA; NECK PAIN; bone pain; DYSPNEA; and NEUROLOGIC DEFICITS.

Autoantibodies that bind to the thyroid-stimulating hormone (TSH) receptor (RECEPTORS, THYROTROPIN) on thyroid epithelial cells. The autoantibodies mimic TSH causing an unregulated production of thyroid hormones characteristic of GRAVES DISEASE.

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