Description
This text describes a system of reporting breast fine needle aspiration biopsy that uses five clearly defined
categories, each described by a specific term and each with a specific risk of malignancy.
The five categories are insufficient/inadequate, benign, atypical, suspicious of malignancy and malignant.
Each category has a risk of malignancy and is linked to management recommendations, which include several
options because it is recognized that diagnostic infrastructure, such as the availability of core needle biopsy
and ultrasound guidance, vary between developed and low and middle income countries.
This text includes key diagnostic cytological criteria for each of the many lesions and tumors found in the breast.
The cytopathology of specific lesions is illustrated with high quality photomicrographs with clear figure descriptions.
Chapters also discuss current and potential future ancillary tests, liquid based cytology, nipple cytology and
management. An additional chapter provides an overview of an approach to the diagnosis of direct smears of breast
fine needle aspiration biopsies.
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The International Academy of Cytology Yokohama System for Reporting Breast Fine Needle Aspiration Biopsy Cytopathology
provides a clear logical approach to the diagnosis and categorization of breast lesions by FNAB cytology, and aims to
facilitate communication with breast clinicians, further research into breast cytopathology and related molecular
pathology, and improve patient care.
Front Matter
1. The International Academy of Cytology Yokohama System for Reporting Breast Fine Needle Aspiration Biopsy
Cytopathology: Introduction and Overview
2. Insufficient/Inadequate
3. Benign
4. Atypical
5. Suspicious of Malignancy
6. Malignant
7. An Approach to the Interpretation of Breast Fine Needle Aspiration Biopsy Cytopathology Direct Smears
8. Nipple Cytopathology
9. Role of Ancillary Tests in Breast Fine Needle Aspiration Biopsy Cytopathology
10. Fine Needle Aspiration Biopsy Cytopathology of the Breast Utilizing Liquid-Based Preparations
11. Clinical Management
Back Matter