Small Bowel Tumor: Sensitivity and Specificity

Introduction: None written.

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Tags: Gastrointestinal Problem Neoplasm Tag this Diagnosis.

The sensitivity and specificity of findings for Small Bowel Tumor are listed below. See the left navigation bar to change the display.

Sensitive and Specific Findings

CT Enteroclysis

85%

97%

CT enteroclysis combines the benefit of cross-sectional CT scanning and barium contrast studies. The technique involves infusion of contrast dye via a nasoenteric tube while obtaining CT images. (UpToDate)

Based on study with 219 pts

Study: Possible small-bowel neoplasms: contrast-enhanced and water-enhanced multidetector CT enteroclysis.

Pilleul F; Penigaud M; Milot L; Saurin JC; Chayvialle JA; Valette PJ

Radiology. 2006 Dec;241(3):796-801. Epub 2006 Oct 19.

PMID 17053201

Sensitive Findings

Small bowel enema

Sensitivity = 90%

Based on a small study

Small bowel enema is also called enteroclysis, which is a double contrast study that is performed by passing a tube into the proximal small bowel and injecting both barium and methylcellulose. (UpToDate)

Study: Primary malignant tumors in the small bowel: a comparison of the small-bowel enema and conventional follow-through examination.

Bessette JR; Maglinte DD; Kelvin FM; Chernish SM

AJR Am J Roentgenol 1989 Oct;153(4):741-4.

PMID 2672733

Abdominal CT

Sensitivity = 87%

Abdominal CT with intravenous and oral contrast can be used to identify one or more of the following manifestations of a carcinoid tumor:

The primary tumor

Mesenteric stranding due to tumor spread admixed with a fibrotic response

Liver metastases (which are invariably present when carcinoid syndrome arises from a gut primary)

Mesenteric lymph node enlargement

(Modified from UpToDate

Study: Primary tumors of the small intestine: CT evaluation.

Dudiak KM; Johnson CD; Stephens DH

AJR Am J Roentgenol 1989 May;152(5):995-8.

PMID 2705358

Computed tomography of abdominal carcinoid tumor.

Cockey BM; Fishman EK; Jones B; Siegelman SS

J Comput Assist Tomogr 1985 Jan-Feb;9(1):38-42.

PMID 3968277

Poorly Diagnostic Findings

UGI/SBFT

Sensitivity = 33%

Based on a small study

Study: Primary malignant tumors in the small bowel: a comparison of the small-bowel enema and conventional follow-through examination.

Bessette JR; Maglinte DD; Kelvin FM; Chernish SM

AJR Am J Roentgenol 1989 Oct;153(4):741-4.

PMID 2672733

Findings With Unspecified Accuracy

Finding	Sensitivity	Specificity	Comments, Study
MRI	No accuracy specified.		Gadolinium-enhanced MRI of the liver is actually a more sensitive test for the presence and extent of liver metastases in patients with carcinoid(UpToDate) Study: Assessment of the extent of metastases of gastrointestinal carcinoid tumors using whole-body PET, CT, MRI, PET/CT and PET/MRI. Seemann MD; Meisetschlaeger G; Gaa J; Rummeny EJ Eur J Med Res. 2006 Feb 21;11(2):58-65. PMID 16504962
Wireless capsule endoscopy	No accuracy specified.		Study: no study specified.
Enteroscopy	No accuracy specified.		Study: no study specified.
Laparotomy	No accuracy specified.		Study: no study specified.