Question:

Which of the following answer choices is true?
1. Mammogram alone can distinguish a benign breast cyst.
2. If ultrasound findings meet the criteria for benign breast cyst, no pathological confirmation is necessary in both men and women.
3. Breast in males has different anatomical boundaries from females.
4. Breast in males is histologically different from females.
5. All Choices apply.





Answer:

The correct answer for the question "Which of the following answer choices is true?" is:

4. Breast in males is histologically different from females.



Explanation
1. Ultrasound is typically needed to distinguish a mass as cyst.

[Only macrocysts containing milk of calcium can be mamographically distinguished from solid masses. Ultrasound is very helpful in diagnosis of cysts revealing a well circumscribed, anechoic mass with posterior acoustic enhancement.]

2. Simple male breast cysts seen on ultrasound need pathology confirmation even if they show benign features. [Although sonographically the finding met criteria for simple benign cyst, considering the rarity of cysts in male patients due to lack of lobular units, findings were categorized as suspicious (Breast Imaging Reporting and Data System Category 4) and pathology confirmation using core needle biopsy was recommended.]

3. [Despite similar anatomical boundaries, the male breast is distinctly different from female breast histologically.]

4. [Despite similar anatomical boundaries, the male breast is distinctly different from female breast histologically.]

5. Only choice 4 applies.



From the manuscript:
Benign Breast Cyst without Associated Gynecomastia in a Male Patient: A Case Report
Radiology Case. 2011 Nov; 5(11):35-40


This article belongs to the Mamms section.




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From the manuscript

Benign Breast Cyst without Associated Gynecomastia in a Male Patient: A Case Report

Free full text article: Benign Breast Cyst without Associated Gynecomastia in a Male Patient: A Case Report

Abstract
Benign simple breast cysts are commonly seen in female breasts and can present as palpable masses. They are distinctly uncommon, however, in the male breast. We report a case of simple benign cyst of the breast in a 58-year-old man newly diagnosed with mantel cell lymphoma. The cyst was first identified incidentally on a staging contrast-enhanced chest computed tomography. Further evaluation with mammography and ultrasound revealed a mass that would be typically characterized as a benign simple cyst, but was biopsied since cysts are not known to occur in male breasts. Pathology results from ultrasound-guided core needle biopsy revealed benign cyst and focal fibrosis which was concordant with the imaging findings. In this case report, we will briefly discuss breast cysts in men and their imaging features including mammography and ultrasound.






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