Gastrointestinal stromal tumor ultrasound: Difference between revisions

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==Endoscopic Ultrasound==
==Endoscopic Ultrasound==
* An endoscopic ultrasound (EUS) may be done in patients of GIST presenting with signs and symptoms of abdominal pain, bleeding or obstructive symptoms.  
* An [[endoscopic ultrasound]] (EUS) may be done in patients of gastrointestinal stromal tumors (GIST) presenting with signs and symptoms of [[abdominal pain]], [[bleeding]] or [[Obstruction|obstructive]] symptoms.  
* An EUS is considered more accurate than a CT scan in differentiating benign from malignant lesions.
* An [[Endoscopic ultrasound|EUS]] is considered more accurate than a [[CT scan]] in differentiating benign from malignant lesions.
* EUS-guided biopsy can also be used for diagnosing and staging of GIST.  
* [[Endoscopic ultrasound|EUS]]-guided [[biopsy]] can also be used for diagnosing and staging of GIST. EUS can detemine the exact cell type and histopathological analysis of GIST
* Finding on endoscopic ultrasound includes:
* Finding on an [[Endoscopic ultrasound|EUS]] includes:
**Mucosal ulceration or bleeding
**[[Mucosal]] [[ulceration]] or [[bleeding]]
**Smooth submucosal mass as hypoechoic mass
**Smooth [[submucosal]] mass as hypoechoic mass
**Malignant GIST lesions present with:
**[[Malignant]] GIST lesions present with:
***Heterogeneous mass >4 cm in size
***[[Heterogeneous]] mass >4 cm in size
***Irregular borders
***Irregular borders
***Intra and extraluminal growth
***[[Intraluminal|Intra]] and extraluminal growth
***Multiple cysts within the main lesion
***Multiple [[cysts]] within the main [[lesion]]


*'''NOTE''': Transcutaneous abdominal ultrasonography is not an imaging of choice for patients with suspected GIST. The presence of bowel gas and air filled viscera leads to poor image quality and inadequate visualization of abdominal organs.
*'''NOTE''': Transcutaneous abdominal [[ultrasonography]] is not an imaging of choice for patients with suspected GIST. The presence of bowel gas and air filled viscera leads to poor image quality and inadequate visualization of abdominal organs.


[[Image:GIST 2.jpg|left|thumb|200px|[[Endoscopy|Endoscopic]] image of GIST in fundus of [[stomach]], seen on retroflexion.]]
[[Image:GIST 2.jpg|left|thumb|200px|[[Endoscopy|Endoscopic]] image of GIST in fundus of [[stomach]], seen on retroflexion.]]

Revision as of 00:39, 18 December 2017

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Akshun Kalia M.B.B.S.[2]

Overview

Endoscopic Ultrasound

  • NOTE: Transcutaneous abdominal ultrasonography is not an imaging of choice for patients with suspected GIST. The presence of bowel gas and air filled viscera leads to poor image quality and inadequate visualization of abdominal organs.
Endoscopic image of GIST in fundus of stomach, seen on retroflexion.


Same GIST seen on forward view of the endoscope showing overlying clot.


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