Slipped lap band - O sign

Case contributed by Jayanth Keshavamurthy , 11 Jan 2015
Diagnosis certain
Changed by Matt A. Morgan, 23 Mar 2015

Updates to Study Attributes

Findings was changed:

1. There are classic radiological signs suggestive of gastric band slippage.

Updates to Study Attributes

Findings was changed:

Coronal volume rendered image showing the slipped Laplap band.

Updates to Quizquestion Attributes

Question was changed:
What is the importance of early diagnosis? Name some of the complications of gastric Laplap banding?

Updates to Quizquestion Attributes

Question was changed:
What is the normal position of Lapthe lap band?
Answer was changed:
In the anteroposterior (AP) projection, the band should be about 4–5 cm below the diaphragm, with a phi angle (angle between the spinal column and gastric band) of 4°-58°.

Updates to Quizquestion Attributes

Question was changed:
What is a radiologistsradiologist's role here?

Updates to Quizquestion Attributes

Question was changed:
What kind of oral contrast should be used in fluroscopyfluoroscopy?

Updates to Case Attributes

Body was changed:

It is radiologiststhe radiologist's role to know some of the normal and abnormal findings of gastric band positioning. Radiologist Radiologists should know what next study to do and why?  

Obesity has become a major medical problem throughout the world. Approximately 400 million people are obese, and about 1.6 billion are overweight. A study performed in the United States in 2005–2006 showed that approximately 1/3 of the population was obese.

Body mass index (BMI) is used to determine obesity by estimating body fat as a calculation of height and weight (kg/m²). A BMI of <18.5 is considered underweight, 18.5–24.9 is normal, 25.0–29.9 is overweight, and ≥30 is obese.

  • -<p>It is radiologists role to know some of the normal and abnormal findings of <a title="gastric band" href="/articles/gastric-band">gastric band</a>. Radiologist should know what next study to do and why?  </p><p>Obesity has become a major medical problem throughout the world. Approximately 400 million people are obese, and about 1.6 billion are overweight. A study performed in the United States in 2005–2006 showed that approximately 1/3 of the population was obese.</p><p>Body mass index (BMI) is used to determine obesity by estimating body fat as a calculation of height and weight (kg/m²). A BMI of &lt;18.5 is considered underweight, 18.5–24.9 is normal, 25.0–29.9 is overweight, and ≥30 is obese.</p>
  • +<p>It is the radiologist's role to know some of the normal and abnormal findings of <a href="/articles/gastric-band">gastric band</a> positioning. Radiologists should know what next study to do and why?  </p><p>Obesity has become a major medical problem throughout the world. Approximately 400 million people are obese, and about 1.6 billion are overweight. A study performed in the United States in 2005–2006 showed that approximately 1/3 of the population was obese.</p><p>Body mass index (BMI) is used to determine obesity by estimating body fat as a calculation of height and weight (kg/m²). A BMI of &lt;18.5 is considered underweight, 18.5–24.9 is normal, 25.0–29.9 is overweight, and ≥30 is obese.</p>

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