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Diagnostic Efficacy and Characteristic Feature of MRI in Pulmonary Hamartoma: Comparison with CT, Specimen MRI, and Pathology

Authors
 Kae Young Park  ;  Sang Jin Kim  ;  Tae Woong Noh  ;  Sang Ho Cho  ;  Doo Yun Lee  ;  Hyo Chae Paik  ;  Young Hoon Ryu 
Citation
 JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY, Vol.32(6) : 919-925, 2008 
Journal Title
 JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY 
ISSN
 0363-8715 
Issue Date
2008
MeSH
Adult ; Calcinosis/diagnostic imaging* ; Female ; Hamartoma/diagnosis* ; Humans ; Image Enhancement/methods ; Image Interpretation, Computer-Assisted/methods* ; Lung Diseases/diagnosis* ; Magnetic Resonance Imaging/methods* ; Male ; Middle Aged ; Reproducibility of Results ; Sensitivity and Specificity ; Tomography, X-Ray Computed/methods*
Keywords
lung neoplasms ; radiological diagnosis ; MRI ; CT ; pulmonary hamartoma
Abstract
OBJECTIVES: To determine the diagnostic efficacy of magnetic resonance imaging (MRI) in pulmonary hamartoma and observe the significant MRI features, other than fat or characteristic calcification revealed by computed tomography (CT). METHODS: Six hamartomas were included and surgically resected, and we prospectively studied MRI in cases showing suggestive findings of hamartoma or indeterminate nodule on CT. We analyzed the tumor on CT and MRI (available enhancement study in 4) focusing on cleftlike structure in comparison with specimen MRI (n = 3) and histopathologic findings: presence, shape, and distribution of the cleftlike structure and signal intensity and enhancement of the cleftlike structure and main portion. RESULTS: Computed tomography revealed suggestive findings of pulmonary hamartoma (fat or popcorn calcification) in only 3. All MRI revealed cleftlike structures particularly evident on T2-weighted images with same detectability as its specimen MRI: peripheral linear or curvilinear inclusions with sometimes intratumoral cleftlike space (n = 3), variable signal intensity, and frequent enhancement (3 in 4) pathologically correlated with the variable mesenchymal tissue components and amount arrayed along respiratory epithelial cells lining the cleft and richer vascularity than main portion of pulmonary hamartoma. CONCLUSIONS: Magnetic resonance imaging study is a useful diagnostic tool, when a discrete pulmonary nodule demonstrates neither fat nor calcification on CT, for detecting the quite typical cleftlike structure in a pulmonary hamartoma and could provide diagnostic confidence.
Full Text
http://ovidsp.ovid.com/ovidweb.cgi?T=JS&CSC=Y&NEWS=N&PAGE=fulltext&AN=00004728-200811000-00016&LSLINK=80&D=ovft
DOI
10.1097/RCT.0b013e31815abed4
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Thoracic and Cardiovascular Surgery (흉부외과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Nuclear Medicine (핵의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Pathology (병리학교실) > 1. Journal Papers
Yonsei Authors
Kim, Sang Jin(김상진)
Noh, Tae Woong(노태웅)
Paik, Hyo Chae(백효채) ORCID logo https://orcid.org/0000-0001-9309-8235
Ryu, Young Hoon(유영훈) ORCID logo https://orcid.org/0000-0002-9000-5563
Lee, Do Yun(이도연)
Cho, Sang Ho(조상호)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/108263
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