Question:

A fistula is:
1. a cleft or groove on the surface of an organ
2. an abnormal communication between two epithelium lined surfaces
3. always associated with Crohn`s disease
4. a complication unique to soft-tissue sarcomas
5. best imaged using ultrasound





Answer:

The correct answer for the question "A fistula is:" is:

2. an abnormal communication between two epithelium lined surfaces



Explanation
1. this is the definition of a fissure.

2. this is the correct definition of a fistula.

3. [fistulas…occur either as a complication of abdominal surgery, or spontaneously as a result of intra-abdominal inflammation or infection.]

4. [they are more commonly reported in adenocarcinoma of the colon resulting in gastrocolic fistulas.]

5. [ultrasound offers limited use in the diagnosis of fistulation and often only provides anatomical information when the fistula is superficial or communicating with the skin surface.]



From the manuscript:
Fistulation as a complication of intra-abdominal soft-tissue sarcomas; a case series
Radiology Case. 2013 Jun; 7(6):15-21


This article belongs to the GI section.




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From the manuscript

Fistulation as a complication of intra-abdominal soft-tissue sarcomas; a case series

Free full text article: Fistulation as a complication of intra-abdominal soft-tissue sarcomas; a case series

Abstract
Soft-tissue sarcomas are rare, accounting for only one percent of all cancers. They can occur in retroperitoneal and intraperitoneal sites, including gastrointestinal stromal tumours (GIST), and have the potential to cause complications secondary to interaction with other abdominal viscera. Fistulation, or an abnormal communication between two epithelium-lined surfaces that do not usually connect, is a rare example of such a complication. We present a series of cases of fistulation due to the presence of an intra-abdominal soft-tissue sarcoma and contrast three different approaches to management. We discuss the radiological features and other modalities of imaging which may be useful in diagnosing this rare complication.






References



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