Question:

Which of the following statements related to uterine leiomyoma is false?
1. Cystic degeneration is observed in about 4% of retroperitoneal leiomyomas.
2. The cystic spaces develop in the edematous, acellular center.
3. Cystic parts demonstrate T1 hypointensity and T2 hyperintensity.
4. Cystic degeneration follows hyaline degeneration.
5. The cystic spaces appear as round, well demarcated areas.





Answer:

The correct answer for the question "Which of the following statements related to uterine leiomyoma is false?" is:

1. Cystic degeneration is observed in about 4% of retroperitoneal leiomyomas.



Explanation
1. No. [A high degree (11.8%) of cystic degeneration has been reported in uterine leiomyomas extending to the retroperitoneal space.]

2. Yes. [Cystic degeneration may be considered an extreme version of edema.]

3. Yes. [Cystic space presents the typical signal intensity of fluid.]

4. Yes. [Cystic degeneration may be considered an extreme version of edema.]

5. Yes. [Cystic parts containing serous fluid.]



From the manuscript:
Giant cystic leiomyoma of the uterus occupying the retroperitoneal space
Radiology Case. 2013 Dec; 7(12):35-40


This article belongs to the OB/GYN section.




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From the manuscript

Giant cystic leiomyoma of the uterus occupying the retroperitoneal space

Free full text article: Giant cystic leiomyoma of the uterus occupying the retroperitoneal space

Abstract
A 31-year-old nulliparous woman visited our hospital complaining of abdominal distension. Abdominal ultrasonography and computed tomography revealed a 40 × 40 × 30-cm, multilocular cystic mass extending from the upper abdomen to the pelvis. Magnetic resonance imaging (MRI) revealed a cystic tumor that was hypointense on T1-weighted images and was heterogeneously hyperintense on T2-weighted images. The final diagnosis was an 8 kg leiomyoma with cystic degeneration. Uterine leiomyomas are common benign tumors in females of reproductive age. However, subserosal leiomyomas with complete cystic degeneration of the retroperitoneal space are rare, and they are difficult to accurately diagnosis without pathological examination.






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