What are the Bethesda categories?
What are the Bethesda categories?
These 6 categories are: nondiagnostic or unsatisfactory (ND, Bethesda I), benign (Bethesda II), atypia of undetermined significance or follicular lesion of undetermined significance (AUS/FLUS, Bethesda III), follicular neoplasm or suspicious for follicular neoplasm (FN/SFN, Bethesda IV), suspicious for malignancy (SM.
What is Bethesda Classification thyroid?
Fine-needle aspiration cytology (FNAC) of thyroid is the initial screening test for thyroid nodules. The Bethesda system classifies thyroid FNAC into six categories. Each category is linked to a malignancy risk and has a recommended clinical management.
What is a Category 4 thyroid nodule?
Bethesda category IV nodules are described as follicular neoplasm or suspicious for follicular neoplasm (FN/SFN).
What is a Bethesda Category 3?
Introduction: The Bethesda System classifies suspicious thyroid nodules or those with a large size after fine-needle aspiration (FNA) depending on the risk of malignancy through its cytology study. Bethesda category 3 (B3) implies atypia of uncertain significance or follicular lesion of undetermined significance.
What is Bethesda Category IV?
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 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 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 does Bethesda mean in medical terms?
The Bethesda system (TBS), officially called The Bethesda System for Reporting Cervical Cytology, is a system for reporting cervical or vaginal cytologic diagnoses, used for reporting Pap smear results. It was introduced in 1988 and revised in 1991, 2001, and 2014.
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.
What does Bethesda category VI thyroid cancer mean?
Bethesda Category VI. Malignant (risk of malignancy 97-99%) – means that the nodule is cancerous and surgery is indicated.
What do you need to know about the Bethesda system?
The Bethesda system provides a framework for consistent interlaboratory terminology for the reporting of cervicovaginal cytology specimens
What are the different risk categories for Bethesda?
• The clinical team is faced with different risk of malignancies (ROM) associated with for Bethesda categories III to VI, especially III and IV (NIFTP constitutes a substantial proportion of the malignancies hidden in these categories). Non-diagnostic/Unsatisfactory
What does Bethesda category predict aggressive features in?
Thyroid malignancies that were classified as Bethesda categories III and IV preoperatively were compared to malignancies that were classified as categories V and VI. Next, classic papillary thyroid carcinomas (PTC) that were Bethesda categories III or IV on preoperative FNA were compared to classic PTC that were Bethesda categories V or VI.