What is Bethesda Category III?

What is Bethesda Category III?

Bethesda category III describes the cytological findings as “atypia of undetermined significance” (AUS) and “follicular lesion of undetermined significance” (FLUS), while Bethesda category IV represents “follicular neoplasm/suspicious for follicular neoplasm” (FN/SFN) [1, 4,5,6].

Is Bethesda Category 3 cancer?

The "atypia of undetermined significance/follicular lesion of undetermined significance" (AUS/FLUS) category, known as Bethesda Category III, has been ascribed a malignancy risk of 5-15%, but the probability of malignancy in AUS/FLUS specimens remains unclear.

Is Bethesda a Category 2 cancer?

Incidental malignancy was found in 1.53% (8/522) cases of Bethesda II . The most common malignant tumor type was the papillary thyroid carcinoma. Conclusion: The current study demonstrates that incidental thyroid carcinoma can be diagnosed after thyroidectomy even in patients with an FNA categorized as Bethesda II.

What are Bethesda categories?

Biopsy results can fall within one of six categories as defined by the Bethesda system for reporting FNA cytopathology results: I (non-diagnostic), II (benign), III (atypia of undetermined significance/follicular lesion of undetermined significance), IV (follicular neoplasm), V (suspicious for malignancy), and VI ( ...

What is Bethesda Category 4?

Bethesda category III includes the cytological findings: “atypia of undetermined significance” (AUS) and “follicular lesion of undetermined significance” (FLUS), while Bethesda category IV represents “follicular neoplasm/suspicious for follicular neoplasm”.

Is thyroid surgery a big deal?

A thyroidectomy is a treatment for a variety of diseases, disorders and conditions of the thyroid gland. A thyroidectomy is a common but major surgery with serious risks and potential complications. You may have less invasive treatment options.

Is Bethesda a Category 4 cancer?

Bethesda category III includes the cytological findings: “atypia of undetermined significance” (AUS) and “follicular lesion of undetermined significance” (FLUS), while Bethesda category IV represents “follicular neoplasm/suspicious for follicular neoplasm”.

What is Category 3 thyroid?

The “atypia of undetermined significance/follicular lesion of undetermined significance” (AUS/FLUS) category, known as Bethesda Category III, has been ascribed a malignancy risk of 5–15%, but the probability of malignancy in AUS/FLUS specimens remains unclear.

What is the meaning of Bethesda Category 2?

Category II—benign This category includes benign follicular nodule (adenomatoid nodule, colloid nodule), lymphocytic (Hashimotos) thyroiditis and granulomatous (subacute) thyroiditis. The benefit of thyroid FNA in these cases is when a reliably benign interpretation is done it avoids unnecessary surgery.

What is a Category 4 thyroid nodule?

Bethesda category IV nodules are described as follicular neoplasm or suspicious for follicular neoplasm (FN/SFN).

How often do Bethesda III thyroid nodules need surgery?

• Among the cases classified as Bethesda category III ( n = 510), 75 (14.7%) underwent immediate surgery, 133 (26.1%) underwent repeat FNAC in 1–3 months, and 302 (59.2%) underwent ultrasonography monitoring at 3-month intervals to measure the size and content of the nodule.

What are the risks of Bethesda Category III and IV?

• Bethesda categories III and IV encompass varying risks of malignancy. This retrospective study established a possible association between these cytological categories and malignancy rates in patients treated at a single institution. Over a 6-year period, 11,627 FNAC procedures were performed on thyroid nodules.

Can a Bethesda system patient take TSH nstht?

• In conclusion, the prevalence of patients with Bethesda System category III and IV thyroid nodules who take NSTHT is high. TSH NSTHT significantly decreases a rate of malignancy in category IV, but not category III patients.

What kind of nodules are treated at Bethesda?

• Flow chart of the number of fine-needle aspiration cytology (FNAC) procedures on thyroid nodules leading to a diagnosis of Bethesda class III (atypia of undetermined significance [AUS] or follicular lesion of undetermined significance [FLUS]) or class IV (follicular neoplasm/suspicious for follicular neoplasm [FN/SFN])