Breast and Axilla
Breast quadrants and segments, pectoral relationships, axillary vessels, brachial plexus, lymph-node groups and common imaging projections.
How to prepare for the current First FRCR
Build precise radiological-anatomy recall across modalities, then connect each Physics statement to image formation, quality, dose, safety and current UK regulation.
Core concepts
Concept 1
Breast quadrants and segments, pectoral relationships, axillary vessels, brachial plexus, lymph-node groups and common imaging projections.
Exam cue: Use projection markers, nipple, chest wall, pectoral muscle and axillary boundaries to orient mammographic and cross-sectional images.
Concept 2
Differentiate breast tissue, retromammary plane, axillary tail and named axillary node levels.
Exam cue: Differentiate breast tissue, retromammary plane, axillary tail and named axillary node levels.
Risk pitfalls and guardrails
Ignoring projection or laterality when transferring a two-dimensional breast image to anatomical location.
Guardrail: Read the image marker and command before committing; a correct structure with wrong side or insufficient specificity can lose marks.
Memory anchors
What anchors mammographic orientation?
Projection, side marker, nipple profile, pectoral muscle and chest-wall edge.
How are axillary node levels defined?
By their relationship to pectoralis minor: lateral, posterior and medial for levels I, II and III.
What is the axillary tail?
Superolateral breast tissue extending toward the axilla through the axillary fascia.
Which structures bound the axilla?
Pectoral muscles anteriorly, subscapularis and latissimus posteriorly, chest wall medially and humerus laterally.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
Which breast structure extends superolaterally through the axillary fascia?
Axillary level I lymph nodes lie in which relation to pectoralis minor?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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