Endoscopic Ultrasonography Diagnosis in Submucosal Tumor of Stomach

Zhang, Q.-L.; Nian, Weidong

doi:10.1055/s-2007-1001475

Cited by 10 publications

(7 citation statements)

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“…The use of EUS for diagnosis of SMTs was described more than a decade ago and is now established as the most sensitive diagnostic procedure for detection of SMTs with other available diagnostic methods, such as endoscopy, bar− ium series, transabdominal ultrasound, and CT, only EUS has the distinct advantage of visualizing the individual layers of the bowel wall and reliably distinguishing the lesions arising in one of these layers from the masses caused by extrinsic compression. Zhang and Nian [12] compared extracorporeal ultrasound, CT, and EUS and reported 22 %, 28 %, and 100 % accuracy, respectively, in the diagnosis of SMTs. Specific tumor types are known to be associated with specific layers of the gastrointestinal wall.…”

Section: Preprocedural Diagnosis Of Submucosal Tumorsmentioning

confidence: 99%

Endoscopic Removal of Submucosal Tumors: Preprocedure Diagnosis, Technical Options, and Results

Shim

Jung

2005

Endoscopy

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Section: Preprocedural Diagnosis Of Submucosal Tumorsmentioning

confidence: 99%

Endoscopic Removal of Submucosal Tumors: Preprocedure Diagnosis, Technical Options, and Results

Shim

Jung

2005

Endoscopy

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“…Endoscopic ultrasonography has been established as the most sensitive diagnostic procedure for SML 8–10 . Compared with other diagnostic methods available, such as transabdominal ultrasound and CT, only EUS has the ability to visualize the individual layers of the wall of the bowel and to distinguish lesions within a single layer reliably.…”

Section: Discussionmentioning

confidence: 99%

Long‐term Follow Up of Patients With Small Gastrointestinal Stromal Tumors in the Stomach Using Endoscopic Ultrasonography‐guided Fine‐needle Aspiration Biopsy

Sawaki¹,

Mizuno²,

Takahashi³

et al. 2005

Digestive Endoscopy

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Background: Gastrointestinal stromal tumors (GIST) are one of the most common mesenchymal tumors of the gastrointestinal tract. GIST are defined by positive immunohistochemical staining for KIT or CD34 and thus are generally diagnosed after surgery. Because small GIST are rarely diagnosed before surgery, the clinical course of these small tumors is not clear. The aim of the present study was to follow changes in size and configuration of small GIST that were pathologically confirmed using endoscopic ultrasonography-guided fine-needle aspiration biopsy (EUS-FNAB). Methods: Between July 1997 and December 2003, 16 tumors in 16 patients (10 men and 6 women) with an immunohistochemical diagnosis of GIST were regularly followed in our hospital. The median patient age when EUS-FNAB was performed was 62 years (range 26-82 years) and the median follow-up period was 4.9 years (range 0.5-9.6 years). Results: Fourteen tumors showed no remarkable changes in size and shape during follow up compared with the initial diagnosis. Two tumors enlarged: one tumor approximately doubled its diameter in 8 years and the other tumor increased from 1.8 cm at diagnosis to up to 10 cm after only 2 years. Doubling time of the latter tumor was calculated as 3.1 months. Conclusions: We conclude that EUS-FNAB might be a good modality for final diagnosis of GIST without surgery, and that GIST without rapid growth on follow up can be endoscopically followed.

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“…It has been reported that US and CT established the diagnosis in only 16% of cases, compared with 100% for EUS. In another comparison study of US, CT and EUS reported an accuracy of 22, 28, and 100%, respectively, in differentiating subepithelial tumors from extraluminal compression [39].…”

Section: Eus Compared To Other Imaging Modalitiesmentioning

confidence: 98%

Role of Endoscopic Ultrasound in Subepithelial Lesions (SELs)

Al-Lehibi¹,

Bamakhrama²

2017

Endoscopic Ultrasound - From Usual to Special

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A subepithelial lesion (SET) is defined as a lesion, bulge or impression visible within the lumen of the gastrointestinal tract that is covered by normally appearing mucosa and usually found incidentally during routine endoscopy. Such a lesion could be either an intramural mass or an impression caused by extramural structures. The old terminology has recently been replaced by the term "subepithelial lesion" because intramural lesions may arise and can be located in any layer of the GI wall underneath the epithelium. The most common SELs are gastrointestinal stromal tumors (GISTs), leiomyomas, lipomas, granular cell tumors (GCTs), pancreatic rests and carcinoid tumors. The prognosis varies from benign to potentially malignant. While the majority of the lesions are considered benign, some tumors such as GISTs and carcinoids have a strong propensity for malignant transformation. Endoscopic ultrasonography (EUS) is the most accurate diagnostic method for distinguishing between extraluminal compressions and intramural lesions and plays a critical role in the detection and management of SELs. This is because EUS can reveal the precise sonographic nature of the lesion even though sometimes there are complex cases, which are difficult to diagnose by EUS alone. Performing routine biopsies and obtaining tissue samples for diagnosis can be difficult because SELs are located beneath the normal epithelial layer. Mostly, EUS allows the practitioner to extract an optimal tissue sample since it allows fine-needle aspiration (FNA) and fine-needle biopsy (FNB) both of which provide good results. With immunocytochemical staining, all these techniques increase the accuracy of the diagnosis. Evaluation of subepithelial lesions by means of EUS imaging will provide further characterization of the lesion to help guide us in appropriate differential diagnosis and further management. In this chapter, we provide a systematic EUS-guided approach to the diagnosis, management and later surveillance for SELs, as well as presenting updated diagnostic techniques that may help physicians to appropriately manage these subepithelial lesions.

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Endoscopic Ultrasonography Diagnosis in Submucosal Tumor of Stomach

Cited by 10 publications

References 0 publications

Endoscopic Removal of Submucosal Tumors: Preprocedure Diagnosis, Technical Options, and Results

Endoscopic Removal of Submucosal Tumors: Preprocedure Diagnosis, Technical Options, and Results

Long‐term Follow Up of Patients With Small Gastrointestinal Stromal Tumors in the Stomach Using Endoscopic Ultrasonography‐guided Fine‐needle Aspiration Biopsy

Role of Endoscopic Ultrasound in Subepithelial Lesions (SELs)

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