A mnemonic to help remember breast lesion localisation when given a set of mammograms (MLO and CC) is:
- muffins rise and lead falls
This can help localise the lesion into the quadrant (e.g. upper, outer) to make ultrasound correlation easier.
- muffins rise: if the lesion is located medially it will be in a higher position (provided that the lesion is at the upper inner quadrant)
- lead falls: if the lesion is located laterally, it will be in a lower position (provided that the lesion is at the lower outer quadrant)
For example, if a lesion projects at the level of the nipple on MLO of the right breast and it is medial it will be at around the 2 o'clock position, whereas if it were lateral it would be at the 8 o'clock position.