Bethesda Thyroid Classification.It appears you’re referring to the Bethesda System for Reporting Thyroid Cytopathology, which is a standardized classification system used for reporting thyroid fine-needle aspiration (FNA) cytology results. This system was developed by the National Cancer Institute (NCI) in collaboration with other organizations. It helps guide clinicians in understanding the risk of malignancy associated with different thyroid FNA results. Here are 10 key things to know about the Bethesda Thyroid Classification:
Bethesda Thyroid Classification
- Background: The Bethesda System was introduced in 2007 to provide a standardized way of reporting thyroid FNA results and to improve communication between pathologists and clinicians.
- Categories: The system consists of six diagnostic categories, each indicating the risk of malignancy associated with the cytological findings. These categories help guide patient management and treatment decisions.
- I – Non-Diagnostic or Unsatisfactory: The sample does not contain enough cells for an accurate diagnosis. Repeat FNA is recommended.
- II – Benign: The cells are clearly non-cancerous, and no further treatment is necessary, although clinical follow-up may be needed.
- III – Atypia of Undetermined Significance (AUS) or Follicular Lesion of Undetermined Significance (FLUS): Cellular changes are present, but they do not clearly indicate either benign or malignant conditions. Further evaluation or repeat FNA may be required.
- IV – Follicular Neoplasm or Suspicious for a Follicular Neoplasm: The cells suggest a follicular neoplasm, which could be either benign or malignant. Surgical evaluation is usually recommended.
- V – Suspicious for Malignancy: The cells show features that strongly suggest malignancy. Surgical intervention is recommended.
- VI – Malignant: The cells are indicative of malignancy. Surgery and further treatment are usually required.
- Molecular Testing: In some cases, molecular testing may be used to further characterize indeterminate or suspicious cases, helping to guide treatment decisions.
- Clinical Implications: The Bethesda System assists clinicians in determining the appropriate course of action based on the cytology results, ranging from conservative observation to surgical intervention.
It’s important to note that this classification system is subject to updates and refinements as medical knowledge advances. Always consult with a healthcare professional for the most accurate and up-to-date information regarding thyroid health and diagnosis.