What are atypical cells thyroid nodule?
ACUS is an abbreviation for “atypical cells of undetermined significance”. This occurs when the thyroid FNA findings don’t show for sure if the nodule is either benign or malignant. The pathologist looks at the cells and just can’t be sure if it is cancer, or non-cancer (benign).
Does atypical thyroid cells mean cancer?
Atypical thyroid biopsy: this happens when there are some abnormal/atypical cells in the biopsy sample but not enough to diagnose a cancer. However, because there are abnormal cells in the biopsy sample, the specimen cannot be called benign.
What is atypia of thyroid?
Atypia of undetermined significance/follicular lesions of undetermined significance (AUS/FLUS) refers to an intermediate histologic category of thyroid nodules in The Bethesda System for Reporting Thyroid Cytopathology.
Is atypia of undetermined significance cancer?
Abstract. Background: Atypia/follicular lesion of undetermined significance (AUS/FLUS) carries a malignancy risk reaching up to 50%. Based on the reported malignancy rate in a given population, the clinical practice towards such a category varies.
Are atypical cells benign?
Atypical hyperplasia (or atypia) means that there are abnormal cells in breast tissue taken during a biopsy. (A biopsy means that tissue was removed from the body for examination in a laboratory.) These abnormal cell collections are benign (not cancer), but are high-risk for cancer.
What does atypical cells on biopsy mean?
Atypical: Cells that are not normal but are not cancerous. Atypical cells could become a cancer over time or may increase a person’s risk of cancer.
What are atypia cells?
What percent of thyroid biopsies are cancerous?
Overall, about 5–10% of thyroid FNAs will have malignant cytology, 10–25% will be indeterminate or suspicious for cancer, and 60–70% will be benign (5, 6). Patients with nodules that are malignant or suspicious for cancer by FNA usually undergo thyroid surgery.
