**Question:** BIRADS score 5 is

A. High suspicion for malignant lesion
B. Suspicious for malignancy
C. Definite malignant lesion
D. Indeterminate lesion

**Correct Answer:** C. Definite malignant lesion

**Core Concept:** The BIRADS (Breast Imaging Reporting and Data System) is a standardized system used to describe and communicate the appearance of breast lesions on mammography, ultrasound, or magnetic resonance imaging (MRI). BIRADS categorizes breast lesions into six categories to standardize communication among healthcare professionals and promote consistent management strategies.

**Why the Correct Answer is Right:** BIRADS score 5 is assigned to definite malignant lesions, indicating a high probability of cancer. The lesion is considered suspicious for malignancy (option B) or high suspicion for malignant lesion (option A), but the correct answer is "Definite malignant lesion" (option C) because it specifically addresses the full severity and provides a clearer understanding of the severity of the breast lesion.

**Why Each Wrong Option is Incorrect:**

A. High suspicion for malignant lesion (option A) is too vague and does not indicate the certainty of malignancy.
B. Suspicious for malignancy (option B) is also too vague as it does not explicitly state the certainty of cancer.
D. Indeterminate lesion (option D) does not accurately represent the severity of a definite malignant lesion.

**Clinical Pearl:** Proper communication and categorization of breast lesions using BIRADS helps in guiding management decisions, including further imaging studies, biopsy, and patient counselling. Understanding the different BIRADS categories is crucial for accurate diagnosis and appropriate management strategies for breast cancer patients.