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Case number:	130
Age:	70
Clinical presentation:	Postmenopausal woman with average risk of developing breast cancer presented with lumpish feel in the upper quadrant of the right breast following blunt trauma by ball.

Mammography:

Breast composition:	ACR category a (the breasts are almost entirely fatty)
Mammography features:
‣ Location of the lesion:	None
‣ Mass:
• Number:	0
• Size:	None
• Shape:	None
• Margins:	None
• Density:	None
‣ Calcifications:
• Typically benign:	None
• Suspicious:	None
• Distribution:	None
‣ Architectural distortion:	None
‣ Asymmetry:	Focal
‣ Intramammary node:	None
‣ Skin lesion:	None
‣ Solitary dilated duct:	None
‣ Associated features:	None

Ultrasound:

Ultrasound features: Right breast, upper outer quadrant at 12 o’clock
‣ Mass
• Location:	Right breast, upper outer quadrant at 12 o’clock
• Number:	1
• Size:	2.2 × 1.0 cm
• Shape:	Oval
• Orientation:	Parallel
• Margins:	Circumscribed
• Echo pattern:	Heteroechoic
• Posterior features:	No posterior features
‣ Calcifications:	None
‣ Associated features:	None
‣ Special cases:	None

BI-RADS:

BI-RADS Category: 2 (benign)

Case summary:

Postmenopausal woman presented with lumpish feel in the upper quadrant of the right breast following recent blunt breast trauma. Diagnosed as haematoma collection in right breast, BI-RADS 2 on imaging.

Learning points:

Breast lump following trauma needs assessment to rule out underlying malignancy. It is a common observation that breast cancer detection surfaces after trivial injury to the breast.