MR of Well-Circumscribed Breast Carcinomas

MR breast imaging technique is reviewed including contrast agent administration and uptake assessment in the evaluation of breast carcinoma.


Course ID: Q00325 Category:
Modalities: , ,


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Targeted CE per ARRT’s Discipline, Category, and Subcategory classification:
[Note: Discipline-specific Targeted CE credits may be less than the total Category A credits approved for this course.]

Breast Sonography: 1.50
Patient Care: 1.00
Patient Interactions and Management: 1.00
Procedures: 0.50
Pathology: 0.50

Mammography: 1.50
Procedures: 1.50
Anatomy, Physiology, and Pathology: 0.50
Mammographic Positioning, Special Needs, and Imaging Procedures: 1.00

Magnetic Resonance Imaging: 2.00
Patient Care: 0.25
Patient Interactions and Management: 0.25
Procedures: 1.75
Body: 1.75

Nuclear Medicine Technology: 1.00
Patient Care: 0.50
Patient Interactions and Management: 0.50
Procedures: 0.50
Endocrine and Oncology Procedures: 0.50

Registered Radiologist Assistant: 1.75
Procedures: 1.75
Thoracic Section: 1.75

Sonography: 1.50
Patient Care: 0.50
Patient Interactions and Management: 0.50
Procedures: 1.00
Superficial Structures and Other Sonographic Procedures: 1.00

Radiation Therapy: 1.50
Patient Care: 0.75
Patient and Medical Record Management: 0.75
Procedures: 0.75
Treatment Sites and Tumors: 0.75


  1. Introduction
  2. Intracystic Papillary Carcinoma
  3. Invasive Papillary Carcinoma
  4. Mucinous Carcinoma
  5. Medullary Carcinoma
  6. Metaplastic Carcinoma
  7. Malignant Phyllodes Tumor
  8. Conclusions


Upon completion of this course, students will:

  1. identify the conventional breast imaging modalities
  2. understand how MRI enables differentiation between benign and malignant lesions
  3. learn about kinetic assessment
  4. identify type II kinetic curves
  5. recognize characteristics of lesion margins associated with malignancy
  6. learn the role of MRI in breast lesion assessment
  7. know requirements of DCE
  8. realize the importance of breast MR quality control measures
  9. describe characteristics of intracystic papillary carcinoma
  10. recognize the composition of intracystic papillary carcinoma
  11. know the core sequences currently used in breast MR imaging
  12. identify the type of kinetic curve from intracystic papillary carcinoma
  13. know the prevalence of bloody nipple discharge associated with invasive papillary carcinoma
  14. identify MR appearance of intracystic papillary carcinoma
  15. describe the appearance of invasive papillary carcinoma
  16. know the structure of the fibrous wall surrounding invasive papillary carcinoma
  17. recognize histological properties of mucinous carcinoma
  18. understand characteristics of mucinous carcinoma that can be unfavorable
  19. recognize the type of mucinous carcinoma with a more favorable outcome
  20. know how age affects outcomes of mucinous carconoma
  21. realize that a type I persistent curve doesn’t mean there’s no concern of malignancy
  22. know the MR appearance of mucinous carcinoma
  23. understand the prevalence of medullary carcinoma, both overall and in the younger population
  24. identify image manifestations of medullary carcinoma
  25. identify a common artifact seen on MR breast images
  26. reinforce understanding of curve contour on kinetic data sets
  27. learn the purpose of computer aided detection (CAD) software
  28. know CAD applies different colors based on delayed phases of the kinetic curve
  29. recognize the purpose of subtraction methods incorporated with DCE MRI
  30. understand the meaning of metaplasia
  31. learn characteristics of metaplastic carcinoma
  32. identify properties that affect the metaplastic carcinoma complexities seen on US
  33. identify properties that affect how metaplastic carcinoma appears on MRI
  34. know how phyllodes tumors are histotypically divided
  35. identify additional properties used for phyllodes assessment
  36. learn why phyllodes requires excision
  37. recognize that malignant phyllodes tumors mimic a benign lesion
  38. understand enhancement properties from certain sensitive areas of the phyllodes tumor
  39. know what lesion does not demonstrate contrast enhancement on MRI
  40. understand how MRI helps to characterize well-circumscribed, benign-looking breast lesions