Magnetic resonance imaging features of fibromas and giant cell tumors of the tendon sheath: differential diagnosis

2019 ◽  
Vol 29 (7) ◽  
pp. 3441-3449 ◽  
Author(s):  
Yuxi Ge ◽  
Gang Guo ◽  
Yaqian You ◽  
Yunzhi Li ◽  
Yinghua Xuan ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Differential Diagnosis ◽  
Magnetic Resonance ◽  
Giant Cell ◽  
Tendon Sheath ◽  
Imaging Features ◽  
Resonance Imaging ◽  
Giant Cell Tumors

Differential diagnosis of fibroma of tendon sheath and giant cell tumor of tendon sheath in the finger using signal intensity on T2 magnetic resonance imaging

2020 ◽  
pp. 028418512097691
Author(s):  
Makoto Emori ◽  
Hiroyuki Takashima ◽  
Kousuke Iba ◽  
Tomoko Sonoda ◽  
Takashi Oda ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Differential Diagnosis ◽  
Magnetic Resonance ◽  
Giant Cell Tumor ◽  
Giant Cell ◽  
Signal Intensity ◽  
Characteristic Curve ◽  
Tendon Sheath ◽  
Cell Tumor ◽  
Resonance Imaging

Background The differential diagnosis of fibroma of tendon sheath (FTS) and giant cell tumor of tendon sheath (GCTTS) on the basis of clinical and radiographic characteristics remains difficult. Purpose To evaluate the quantitative measurement of signal intensity (SI) obtained by magnetic resonance imaging (MRI) for the differential diagnosis of FTS and GCTTS in just the finger. Material and Methods We retrospectively identified patients with FTS (n = 6) and GCTTS (n = 22) of the finger who were treated at our hospitals between April 2011 and August 2019. Two researchers independently reviewed the MRIs and measured the regions of interest (ROIs) in the tumor and flexor tendon from the same image. The SI ratio obtained for the tumor and tendon ROIs was measured and compared using receiver-operating characteristic curve analyses. Sensitivity and specificity analyses were performed. Results The SI ratios (mean ± SD) of FTS and GCTTS were 1.83 ± 0.64 and 6.34 ± 3.16 for researcher 1 and 1.82 ± 0.60 and 6.10 ± 3.22 for researcher 2, respectively. The areas under the curve were 0.970 and 0.970 for researchers 1 and 2, respectively. The cut-off values of the SI ratio as determined by researchers 1 and 2 for differentiating FTS from GCTTS were 3.00 and 3.00, respectively (sensitivity = 95.5%, specificity = 100%). Conclusions The SI ratio is useful for differentiating FTS from GCTTS independent of a combination of tumor signal and shape.

scholarly journals Giant cell tumor of the tendon sheath: Magnetic resonance imaging findings in 38 patients

2017 ◽  
Vol 13 (6) ◽  
pp. 4459-4462 ◽  
Author(s):  
Chao Wang ◽  
Rui-Rui Song ◽  
Ping-Ding Kuang ◽  
Liu-Hong Wang ◽  
Min-Ming Zhang
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Giant Cell Tumor ◽  
Giant Cell ◽  
Tendon Sheath ◽  
Cell Tumor ◽  
Imaging Findings ◽  
Resonance Imaging

Neurosarcoidosis

2015 ◽  
Author(s):  
Jeffrey M Gelfand ◽  
Barney Stern
Keyword(s):  
Magnetic Resonance Imaging ◽  
Nervous System ◽  
Differential Diagnosis ◽  
Magnetic Resonance ◽  
Inflammatory Process ◽  
Granulomatous Inflammation ◽  
Organ System ◽  
Inflammatory Disorder ◽  
Imaging Features ◽  
Resonance Imaging

Sarcoidosis is an inflammatory disorder of unclear cause characterized by nonnecrotizing (noncaseating) granulomatous inflammation. Neurosarcoidosis—involvement of the nervous system by the granulomatous inflammatory process of sarcoidosis—affects approximately 5 to 15% of people with sarcoidosis and is a major cause of morbidity from the disease. Neurosarcoidosis is often invoked in the differential diagnosis of suspected inflammatory neurologic syndromes. This chapter discusses the epidemiology, etiology, genetics, pathophysiology and pathogenesis, diagnosis and differential diagnosis, treatment, complications, and prognosis of neurosarcoidosis. Figures show magnetic resonance imaging features of neurosarcoidosis. Tables outline a clinical framework for categorizing neurosarcoidosis and neurologic organ system involvement by sarcoidosis.   This chapter contains 1 highly rendered figure, 2 tables, 124 references, 1 teaching slide set, and 5 MCQs.

Giant Cell Tumor of the Flexor Hallucis Longus Tendon Sheath

2011 ◽  
Vol 101 (2) ◽  
pp. 187-189 ◽  
Author(s):  
Jeff Findling ◽  
Natalie K. LaScola ◽  
Thomas W. Groner
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Giant Cell Tumor ◽  
Giant Cell ◽  
Tendon Sheath ◽  
Cell Tumor ◽  
Flexor Hallucis Longus ◽  
Resonance Imaging ◽  
Longus Tendon ◽  
Complete Surgical Excision

Giant cell tumor of tendon sheath is infrequently documented in the foot and even less near the ankle. This case report involves such a tumor of the flexor hallucis longus tendon presenting at the posterior ankle. Diagnosis was aided by magnetic resonance imaging, and treatment consisted of complete surgical excision. Pathologic examination verified the diagnosis of giant cell tumor of tendon sheath, and follow-up magnetic resonance imaging revealed no remnants or recurrence of tumor 1 year after surgery. (J Am Podiatr Med Assoc 101(2): 187–189, 2011)

Rare Giant Cell Tumor of the Distal Flexor Digitorum Longus Tendon Sheath and Early Diagnosis with Use of Magnetic Resonance Imaging

2017 ◽  
Vol 107 (4) ◽  
pp. 333-336 ◽  
Author(s):  
Michael Levi ◽  
Jordan Crafton
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Giant Cell Tumor ◽  
Giant Cell ◽  
Early Recognition ◽  
Tendon Sheath ◽  
Cell Tumor ◽  
The Body ◽  
Foot And Ankle ◽  
Resonance Imaging

Giant-cell tumor of the tendon sheath (GCT-TS) is an uncommon occurrence for a foot and ankle surgeon. However, there is a need to recognize the symptoms of typical and atypical presentations of this pathology. These benign neoplasms are recognized clinically as a soft-tissue mass that is usually painless and palpable. The foot and ankle account for only 3% to 5% of all GCT-TS in the body, with most being located in the hand. Giant cell tumor in the tendon sheath occurring in the foot and ankle is usually encountered on the lateral ankle and dorsum of the foot, occupying the extensor tendons. Additionally, it is commonly misdiagnosed clinically. This case study illustrates how early use of magnetic resonance imaging decreased patient morbidity with early recognition and excision of GCT-TS.

Magnetic resonance imaging of localized giant cell tumour of the tendon sheath (MRI of localized GCTTS)

1997 ◽  
Vol 7 (2) ◽  
pp. 198-201 ◽  
Author(s):  
L. De Beuckeleer ◽  
A. De Schepper ◽  
F. De Belder ◽  
J. Van Goethem ◽  
M. C. B. Marques ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Giant Cell ◽  
Giant Cell Tumour ◽  
Tendon Sheath ◽  
Cell Tumour ◽  
Resonance Imaging
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