..., instructions or products referred to in the content or advertisements. 2020 The International System for Reporting Serous Fluid Cytopathology Pericardial effusions Pericardial fluid Effusion cytology Nondiagnostic cases Negative for malignancy Atypia of undetermined significance Suspicious...

...Polycarp Erivwo; Chandrani Ghosh Introduction: The rates of atypia of undetermined significance (AUS) by fine-needle aspiration (FNA) and malignant outcomes have been estimated at < 7% and 5–15%, respectively. Initial AUS diagnosis is followed up clinically with serial ultrasounds, repeat FNA...

...Lourdes Estrada Muñoz; Cristina Díaz del Arco; Luis Ortega Medina; M. Jesús Fernández Aceñero Objectives: To review our institutional experience and to analyze the clinical decisions made after a cytological diagnosis of atypia of undetermined significance or follicular lesion of undetermined...

... and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. Atypia of undetermined significance Papillary thyroid carcinoma, follicular variant The Bethesda System for Reporting...

... Thyroid Cytopathology (BSRTC) is now widely used as the standard reporting system for FNAC. Among the BSRTC categories, the atypia of undetermined significance (AUS)/follicular lesion of undetermined significance (FLUS) category includes various lesions that are not clearly benign or malignant [ 1...

...Roghayeh Fazeli; Eric B. Schneider; Syed Z. Ali; Martha A. Zeiger; Matthew T. Olson Objective: Diagnostic frequency ratios such as the atypia of undetermined significance (AUS):malignant ratio are touted to be useful for laboratory precision benchmarking. We therefore sought to examine...

... group. However, the category entitled ‘atypia of undetermined significance or follicular lesion of undetermined significance' (AUS/FLUS) is problematic. This category is heterogeneous and has been overused so far. Study Design: Twenty-six studies were included in a meta-analysis. In addition to AUS/FLUS...

...Paul A. VanderLaan; Jeffrey F. Krane; Edmund S. Cibas Objective: Cytopathologists’ usage patterns for ‘atypia of undetermined significance’ (AUS) in thyroid fine-needle aspiration (FNA) are not well understood. AUS rates over a 5-year period were analyzed to quantify variability and identify...

...Matthew T. Olson; Douglas P. Clark; Yener S. Erozan; Syed Z. Ali Objective: To determine if focal ‘nuclear atypia’ or ‘microfollicular architecture’ portends a higher risk of malignancy than other subcategories of atypia of undetermined significance (AUS) in thyroid fine-needle aspirations (FNAs...