Gastrointestinal stromal tumor ultrasound
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Gastrointestinal stromal tumor Microchapters |
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Differentiating Gastrointestinal stromal tumor from other Diseases |
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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
An endoscopic ultrasound (EUS) may be done in patients of gastrointestinal stromal tumors (GIST) presenting with signs and symptoms of abdominal pain, bleeding or obstructive symptoms. EUS-guided biopsy can also be used for diagnosing and staging of GIST. An EUS can detemine the exact cell type and histopathological analysis associated with GIST. On EUS, GIST appears as Smooth submucosal mass with areas of ulceration or bleeding.
Endoscopic Ultrasound
An endoscopic ultrasound (EUS) may be done in patients of gastrointestinal stromal tumors (GIST) presenting with signs and symptoms of abdominal pain, bleeding or obstructive symptoms.[1][2][3]
- An 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. An EUS can determine the exact cell type and histopathological analysis associated with GIST.
- Finding on an EUS includes:
- Mucosal ulceration or bleeding
- Smooth submucosal mass as hypoechoic mass
- Malignant GIST lesions present with:
- Heterogeneous mass >4 cm in size
- Irregular borders
- Intra and extraluminal growth
- 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.
References
- ↑ Gu M, Ghafari S, Nguyen PT, Lin F (2001). "Cytologic diagnosis of gastrointestinal stromal tumors of the stomach by endoscopic ultrasound-guided fine-needle aspiration biopsy: cytomorphologic and immunohistochemical study of 12 cases". Diagn. Cytopathol. 25 (6): 343–50. PMID 11747229.
- ↑ Fu K, Eloubeidi MA, Jhala NC, Jhala D, Chhieng DC, Eltoum IE (2002). "Diagnosis of gastrointestinal stromal tumor by endoscopic ultrasound-guided fine needle aspiration biopsy--a potential pitfall". Ann Diagn Pathol. 6 (5): 294–301. PMID 12376922.
- ↑ Zhao X, Yue C (2012). "Gastrointestinal stromal tumor". J Gastrointest Oncol. 3 (3): 189–208. doi:10.3978/j.issn.2078-6891.2012.031. PMC 3418531. PMID 22943011.