Which Breast Imaging Reporting and Data System category indicates a suspicion for malignancy?

The Breast Imaging Reporting and Data System (BI-RADS) categorizes findings from mammography and other breast imaging studies to standardize reporting and facilitate communication among healthcare providers. Each category serves a specific purpose, with some indicating a higher suspicion of breast cancer.

When it comes to the indication of suspicion for malignancy, Category 4 is critical, as it specifically encompasses lesions that have a moderate to high suspicion of being malignant. This category is further subdivided into 4A, 4B, and 4C, distinguishing the level of suspicion more precisely. For instance, Category 4A represents a low suspicion for malignancy, while 4B has a moderate suspicion, and 4C carries a higher suspicion for malignancy, prompting further diagnostic evaluation, such as biopsy.

Category 5 indicates a high probability of malignancy, suggesting that there is a very strong suspicion that the lesion is cancerous, resulting in a recommendation for immediate action.

In contrast, Categories 2 and 3 imply benign findings. Category 2 indicates completely benign findings, while Category 3 suggests a probably benign finding with a recommendation for follow-up rather than immediate intervention.

Thus, Category 4 is the most appropriate designation when there is suspicion for