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Hypertrophic pyloric stenosis: tips and tricks for ultrasound diagnosis.

Costa Dias S, Swinson S, Torrão H, Gonçalves L, Kurochka S, Vaz CP, Mendes V - Insights Imaging (2012)

Bottom Line: We describe a systematic approach to the ultrasound (US) examination of the antropyloric region in children.Common difficulties in performing the examination and tips to help overcome them will also be discussed.Main Messages • Hypertrophic Pyloric Stenosis is defined by thickening of the muscular layer and failure in relaxation of the pyloric canal. • The main diagnostic criterion is a measurement of more than 3mm in thickness of the muscular layer. • Abnormal elongation of the canal is characterised as greater than 12 mm in length.

View Article: PubMed Central - PubMed

Affiliation: Radiology Department, Hospital de Braga, Braga, Portugal, silviacostadias@hotmail.com.

ABSTRACT
We describe a systematic approach to the ultrasound (US) examination of the antropyloric region in children. US is the modality of choice for the diagnosis of hypertrophic pyloric stenosis (HPS). The imaging features of the normal pylorus and the diagnostic findings in HPS are reviewed and illustrated in this pictorial essay. Common difficulties in performing the examination and tips to help overcome them will also be discussed. Main Messages • Hypertrophic Pyloric Stenosis is defined by thickening of the muscular layer and failure in relaxation of the pyloric canal. • The main diagnostic criterion is a measurement of more than 3mm in thickness of the muscular layer. • Abnormal elongation of the canal is characterised as greater than 12 mm in length.

No MeSH data available.


Related in: MedlinePlus

a The double layer of thickened mucosa (*), b protruding through the antrum
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Fig7: a The double layer of thickened mucosa (*), b protruding through the antrum

Mentions: Additional US findings in HPS are hypertrophy of the mucosa and a markedly distended and actively peristalsing stomach. A double internal layer of crowded and redundant mucosa may be identified (Fig. 7a), protruding through the antrum (Fig. 7b). This was classically described as the nipple sign in conventional contrast studies. The double layer of thickened mucosa is hyperechogenic and can be confused with echogenic contents passing through the pylorus.Fig. 7


Hypertrophic pyloric stenosis: tips and tricks for ultrasound diagnosis.

Costa Dias S, Swinson S, Torrão H, Gonçalves L, Kurochka S, Vaz CP, Mendes V - Insights Imaging (2012)

a The double layer of thickened mucosa (*), b protruding through the antrum
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3369120&req=5

Fig7: a The double layer of thickened mucosa (*), b protruding through the antrum
Mentions: Additional US findings in HPS are hypertrophy of the mucosa and a markedly distended and actively peristalsing stomach. A double internal layer of crowded and redundant mucosa may be identified (Fig. 7a), protruding through the antrum (Fig. 7b). This was classically described as the nipple sign in conventional contrast studies. The double layer of thickened mucosa is hyperechogenic and can be confused with echogenic contents passing through the pylorus.Fig. 7

Bottom Line: We describe a systematic approach to the ultrasound (US) examination of the antropyloric region in children.Common difficulties in performing the examination and tips to help overcome them will also be discussed.Main Messages • Hypertrophic Pyloric Stenosis is defined by thickening of the muscular layer and failure in relaxation of the pyloric canal. • The main diagnostic criterion is a measurement of more than 3mm in thickness of the muscular layer. • Abnormal elongation of the canal is characterised as greater than 12 mm in length.

View Article: PubMed Central - PubMed

Affiliation: Radiology Department, Hospital de Braga, Braga, Portugal, silviacostadias@hotmail.com.

ABSTRACT
We describe a systematic approach to the ultrasound (US) examination of the antropyloric region in children. US is the modality of choice for the diagnosis of hypertrophic pyloric stenosis (HPS). The imaging features of the normal pylorus and the diagnostic findings in HPS are reviewed and illustrated in this pictorial essay. Common difficulties in performing the examination and tips to help overcome them will also be discussed. Main Messages • Hypertrophic Pyloric Stenosis is defined by thickening of the muscular layer and failure in relaxation of the pyloric canal. • The main diagnostic criterion is a measurement of more than 3mm in thickness of the muscular layer. • Abnormal elongation of the canal is characterised as greater than 12 mm in length.

No MeSH data available.


Related in: MedlinePlus