Summary: Rushing to definitives on imperfect studies leads to cognitive errors, overcalling, and inappropriate assignment (e.g., BI-RADS 3 should never be assigned at screening; baseline findings with incomplete evaluation require BI-RADS 0 for additional workup).
Mastering Mystery: An unknown diagnosis does not equal an unknown process; you needn’t know the precise pathology to determine your safest next step. Introduced by ARRS Distinguished Educator Dr. Tanya Moseley during our Mystery to Mastery longitudinal course, here’s how her C-L-E-A-R acrostic’s stepwise methodology transforms clinical uncertainty into structured reasoning:
- C—Context: Anchor in Facts
- Gather patient age, symptoms, indication, modality, technique, priors, etc.
- L—Localize: Boundaries, First
- Pinpoint an abnormality’s region, compartment, and epicenter, before attempting to characterize it.
- E—Examine: Objective Descriptions
- Systematically evaluate morphology, density, echogenicity, or enhancement, then document key negatives.
- A—Alternatives: Defensible DDX
- Avoiding the too obscure, rank 2–3 reasonable possibilities (summation artifact vs. focal asymmetry vs. obscured mass).
- R—Resolve: Execute Safely
- Determine whether the patient needs FFDM, DBT, targeted US, prior comparison, or even reassuring observation.
Case in Point: Single-View Asymmetry
- Scenario: In Moseley’s case, a baseline screening mammogram in an asymptomatic patient revealed a focal density in the middle posterior left breast, visible on only one view.
- Reasoning: Persistence, morphology, and second-view correlate couldn’t be confirmed.
- Action: Incomplete exam assigned BI-RADS 0 and recommended mammo, DBT, and US—rather than guessing or misapplying BI-RADS 3.
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