Metabolite signature of developmental foregut cyst on in vivo and in vitro H-1 MR spectroscopy

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dc.contributorSanthosh, Kannath
dc.contributorThomas, Bejoy
dc.contributorVarma, Luxmi
dc.contributorSandhyamany, S.
dc.contributorKesavadas, Chandrasekharan
dc.contributorAppukuttan, P. S.
dc.contributorSrinivas, G.
dc.contributorGupta, Arun Kumar
dc.contributorKapilamoorthy, T. R.
dc.contributorUnnikrishnan, M.
dc.date.accessioned2012-12-04T11:44:36Z
dc.date.available2012-12-04T11:44:36Z
dc.date.issued2008
dc.description.abstractForegut duplication cysts are developmental anomalies of the bronchopulmonary foregut and are common cystic lesions of the mediastinum. We describe a case of mediastinal foregut duplication cyst with in vivo H-1 MR spectroscopy on a 1.5T magnet showing a large metabolite peak at 2.02 ppm, attributable to N-acetylated compounds, in addition to a smaller peak at 1.33 ppm, considered to represent lipids. In vitro NMR spectroscopy (7.05T) of cyst fluid confirmed the presence of these peaks. In addition; a broad multiplet centered at 3.7 ppm, possibly from various protons of the hexose ring system, was also noted. Chemical analysis of the cyst fluid demonstrated the presence of N-acetylhexosamines, proteins, and lipids: Again, in vitro spectra of pure samples of N-acetylglucosamine and N-acetylgalactosamine were obtained for comparison, which better resolved the N-acetyl peak and the peaks at 3.7 ppm. The mucus secreted by respiratory epithelium and the mucous glands of the foregut cysts contains glycoproteins that have N-acetylhexosamines as components and lipid breakdown products that are thought to contribute to the observed spectrum. This information might be useful in predicting the cyst content and, in turn, the lining of the epithelium and the glandular elements.
dc.identifier.citationJOURNAL OF MAGNETIC RESONANCE IMAGING. 28; 2; 493-496en_US
dc.identifier.urihttp://dx.doi.org/10.1002/jmri.21428
dc.identifier.urihttps://dspace.sctimst.ac.in/handle/123456789/742
dc.publisherJOURNAL OF MAGNETIC RESONANCE IMAGING
dc.subjectRadiology
dc.titleMetabolite signature of developmental foregut cyst on in vivo and in vitro H-1 MR spectroscopy
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