RT223 Complimentary Projections

Medially Rotated Cranio-Caudal Projection

This projection shows the lateral & mid-line portions of the breast

• Lesions demonstrated in MLO but not on CC

• Lesions located in the extreme lateral portion of the breast

• Large breasted women who need more than one film in CC positions

Indications for Medially rotated CC Projection

35°

More appropriate for patients with longer chest and small breasts

55°

Short-term chest and large breast

• Nipple points towards the lateral

• Cleavage may be demonstrated

In a laterally rotated CC projection, the image shows:

Laterally Rotated Cranio-Caudal Projection

If the whole lateral aspect has been demonstrated on this view it is a possibility that the lesion lies medially

Extended Cranio-caudal projection

This projection is used to show a lesion seen high in the axillary tail on the medio-lateral oblique but not on cranio-caudal

Extended Cranio-caudal projection

Area demonstrated in this projection includes the axillary tail and upper midline portion of breast tissue

• Nipple in profile

• Anterior edge of pectoral muscle lateral to midline of breast

The extended cranio-caudal projection should demonstrate:

Extended Cranio-caudal projection

This is an awkward position for the woman, and compression, exposure and release should be accompanied with speed

Medio-lateral Projection

Majority of breast tissue with the exception of the axillary tail is viewed on this projection

• Nipple in profile

• Inframammary nipple

• Lower part of the pectoral muscle

The medio-lateral projection should demonstrate:

Medio-lateral Projection

Applying compression in this position is awkward for the radiographer due to the position of the tube housing