Question:

Phyllodes tumors usually have margins that are:
1. Microlobulated.
2. Spiculated.
3. Ill-defined.
4. Circumscribed.
5. Calcified.





Answer:

The correct answer for the question "Phyllodes tumors usually have margins that are:" is:

4. Circumscribed.



Explanation
1. Incorrect, phyllodes tumors are typically smooth and well circumscribed.

2. Incorrect, phyllodes tumors are typically smooth and well circumscribed.

3. Incorrect, phyllodes tumors are typically smooth and well circumscribed.

4. This is correct.  Margins typically have a benign appearance.  [A phyllodes tumor should be considered in women with a large rapidly growing breast mass, but this type of mass will be circumscribed with smooth margins, and without calcifications.] 

5. Incorrect, phyllodes tumors are typically smooth and well circumscribed.  Fat necrosis may have calcified margins.



From the manuscript:
Breast Fibromatosis Response to Tamoxifen: Dynamic MRI Findings and Review of the Current Treatment Options
Radiology Case. 2012 Mar; 6(3):16-23


This article belongs to the Mamms section.




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From the manuscript

Breast Fibromatosis Response to Tamoxifen: Dynamic MRI Findings and Review of the Current Treatment Options

Free full text article: Breast Fibromatosis Response to Tamoxifen:  Dynamic MRI Findings and Review of the Current Treatment Options

Abstract
Breast fibromatosis is a rare entity responsible for 0.2% of all solid breast tumors. It has been associated with scars, pregnancy, implants, and familial adenomatous polyposis. We present an interesting case of breast fibromatosis in a 29 year old woman which encroached upon her saline implant and subsequently filled its cavity once the implant was removed. The patient was put on tamoxifen therapy and at 14 month follow-up there was a significant decrease in the size of the mass. Dynamic MRI images are offered for review and current treatment options are discussed.






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