Abstract：
:The purpose of this study was to explain radiographic features of giant cell tumors of the tendon sheath (GCTTS), in particular, osseous extension, by correlating imaging findings with histology in order to increase the accuracy of radiological diagnosis. In a series of 200 consecutive osseous (pseudo) tumors of the hand, on radiography, six patients presented with an intrinsic osseous lesion caused by a histologically confirmed neighboring GCTTS. Available radiographs, computed tomography (CT), and contrast-enhanced magnetic resonance (MR) images were correlated with histology. Radiography showed osseous lesions consisting of well-defined cortical defects in four (one of whom also demonstrated cortical scalloping) and a slightly expansile, well-defined osteolytic lesion in two patients. MR obtained in four patients showed the extraosseous tumor invading/eroding bone and causing cortical scalloping (three and one patients, respectively). Extension depicted on MR was confirmed on the two available resection specimens. All lesions were polylobular (cauliflower or mushroom like) and neighboring tendon sheaths. Dense collagen and hemosiderin-loaded macrophages explained the high CT attenuation and the low MR signal intensity on T2-weighted images that was observed in all four MR and in all two CT scans. The high density of proliferative capillaries explained the marked enhancement observed in all four patients with gadolinium (Gd)-chelate-enhanced MR imaging. GCTTS is a soft tissue (pseudo) tumor that may invade bone and as a consequence mimick an intrinsic osseous lesion on radiographs. In such cases, specific MR and CT features that can be explained by histological findings can be used to suggest the correct diagnosis.
journal_name
Eur Radioljournal_title
European radiologyauthors
De Schepper AM,Hogendoorn PC,Bloem JLdoi
10.1007/s00330-006-0320-4subject
Has Abstractpub_date
2007-02-01 00:00:00pages
499-502issue
2eissn
0938-7994issn
1432-1084journal_volume
17pub_type
杂志文章abstract：:The objective of this study was to compare screen-film mammography (SFM) to full-field digital mammography (FFDM) regarding image quality as well as detectability and characterization of lesions using equivalent images of the same patient acquired with both systems. Two mammography units were used, one with a screen-f...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-001-1269-y
更新日期：2002-07-01 00:00:00
abstract：:The aim of our study was to assess whether contrast-enhanced CT colonography is a feasible alternative to both conventional colonoscopy and liver ultrasonography in the follow-up program of colorectal cancer patients. Thirty-five patients, surgically treated for colorectal cancer, underwent a follow-up program that in...
journal_title：European radiology
pub_type： 杂志文章
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更新日期：2003-04-01 00:00:00
abstract：OBJECTIVES:To demonstrate the feasibility of using chemical exchange saturation transfer (CEST) imaging to detect Parkinson's disease (PD) in patients at 3 Tesla. METHODS:Twenty-seven PD patients (17 men and 10 women; age range, 54-77 years) and 22 age-matched normal controls (13 men and 9 women; age range, 55-73 year...
journal_title：European radiology
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journal_title：European radiology
pub_type： 评论,社论
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更新日期：2019-04-01 00:00:00
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pub_type： 杂志文章,评审
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更新日期：2002-01-01 00:00:00
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pub_type： 杂志文章
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更新日期：2007-06-01 00:00:00
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journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-002-1656-z
更新日期：2003-08-01 00:00:00
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journal_title：European radiology
pub_type： 杂志文章,多中心研究
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更新日期：2012-01-01 00:00:00
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pub_type： 杂志文章
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更新日期：2007-10-01 00:00:00
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更新日期：2001-01-01 00:00:00
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journal_title：European radiology
pub_type： 杂志文章
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更新日期：2007-02-01 00:00:00
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更新日期：2007-05-01 00:00:00
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journal_title：European radiology
pub_type： 杂志文章,评审
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更新日期：2001-01-01 00:00:00
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pub_type： 杂志文章
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更新日期：2017-07-01 00:00:00
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pub_type： 杂志文章
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更新日期：2005-01-01 00:00:00
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journal_title：European radiology
pub_type： 杂志文章,多中心研究,随机对照试验
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更新日期：2014-09-01 00:00:00
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journal_title：European radiology
pub_type： 杂志文章,评审
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更新日期：2001-01-01 00:00:00
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pub_type： 杂志文章
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更新日期：2004-10-01 00:00:00
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journal_title：European radiology
pub_type： 杂志文章
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abstract：OBJECTIVE:To compare the sensitivity, specificity, and diagnostic accuracy of fat-only datasets reconstructed using a two-point Dixon technique, with corresponding opposed-phase (OP) and in-phase (IP) datasets for characterization of adrenal lesions at 3 Tesla (T). METHODS:Fifty-nine patients (21 male, 38 female) with...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-011-2244-x
更新日期：2012-01-01 00:00:00
