Case 4.5

2014 ◽  
pp. 196-196
Author(s):  
Christine U. Lee ◽  
James F. Glockner
Keyword(s):  
Prostate Cancer ◽  
Contrast Agent ◽  
Signal Intensity ◽  
Pancreatic Mass ◽  
Pancreatic Tail ◽  
Intermediate Signal Intensity ◽  
History Of ◽  
T2 Weighted Images

58-year-old man with a history of prostate cancer and a possible pancreatic mass on CT Axial fat-suppressed FSE T2-weighted images obtained before (Figure 4.5.1) and after (Figure 4.5.2) administration of an SPIO contrast agent demonstrate an ovoid mass in the pancreatic tail with intermediate signal intensity that becomes significantly hypointense after SPIO administration and matches the signal intensity of the spleen....

Case 11.16

2014 ◽  
pp. 556-556
Author(s):  
Christine U. Lee ◽  
James F. Glockner
Keyword(s):  
Signal Intensity ◽  
Pelvic Mass ◽  
Intermediate Signal Intensity ◽  
Heterogeneous Enhancement ◽  
T2 Weighted Images

57-year-old woman with a pelvic mass Axial fat-suppressed FSE T2-weighted images (Figure 11.16.1) demonstrate a large heterogeneous mass in the central and right pelvis with regions of high and intermediate signal intensity. Axial postgadolinium 3D SPGR images (Figure 11.16.2) reveal heterogeneous enhancement of the lesion with anterior and inferior cystic or necrotic regions....

Case 11.5

2014 ◽  
pp. 538-539
Author(s):  
Christine U. Lee ◽  
James F. Glockner
Keyword(s):  
Signal Intensity ◽  
Quadrant Pain ◽  
Lower Quadrant Pain ◽  
Lower Quadrant ◽  
Left Lower Quadrant ◽  
History Of ◽  
Adnexal Lesion ◽  
T2 Weighted Images

27-year-old woman with left lower quadrant pain and a history of endometriosis Axial FSE T2-weighted images (Figure 11.5.1) demonstrate a large, lobulated left adnexal lesion with regions of high and low signal intensity. Coronal fat-suppressed FSE T2-weighted images (Figure 11.5.2) reveal similar findings. Coronal fat-suppressed FSE T1-weighted images (...

Case 5.1

2014 ◽  
pp. 245-246
Author(s):  
Christine U. Lee ◽  
James F. Glockner
Keyword(s):  
Diabetes Mellitus ◽  
Abdominal Pain ◽  
Signal Intensity ◽  
Recurrent Abdominal Pain ◽  
Iron Deposition ◽  
History Of ◽  
T2 Weighted Images

35-year-old man with a long history of diabetes mellitus and recent episode of peritonitis now presents with recurrent abdominal pain and fever Axial fat-suppressed FSE T2-weighted images (Figure 5.1.1) show multiple hyperintense lesions in the spleen. The diffuse, decreased signal intensity throughout the remainder of the spleen is due to hemosiderosis and iron deposition. Gadolinium-enhanced axial 3D SPGR images (...

Case 14.1

2014 ◽  
pp. 675-676
Author(s):  
Christine U. Lee ◽  
James F. Glockner
Keyword(s):  
Prostate Cancer ◽  
Signal Intensity ◽  
Diffusion Weighted Image ◽  
Linear Defect ◽  
Buttock Pain ◽  
Axial Diffusion ◽  
Weighted Image ◽  
Diffusion Weighted ◽  
History Of ◽  
The Right

72-year-old man with a history of prostate cancer and new posterior right buttock pain Axial (Figure 14.1.1) and coronal oblique (Figure 14.1.2) T1-weighted images and axial (Figure 14.1.3) and coronal oblique (Figure 14.1.4) fat-suppressed T2-weighted FSE images demonstrate a linear defect in the right side of the sacrum with low signal intensity on T1-weighted images and mildly increased T2-signal intensity. Axial diffusion-weighted image (b=800 s/mm...

Case 8.19

2014 ◽  
pp. 407-408
Author(s):  
Christine U. Lee ◽  
James F. Glockner
Keyword(s):  
Signal Intensity ◽  
Arterial Phase ◽  
Gross Hematuria ◽  
Ureterovesical Junction ◽  
P 75 ◽  
History Of ◽  
The Right ◽  
T2 Weighted Images

75-year-old man with history of gross hematuria Axial fat-suppressed FSE T2-weighted images (Figure 8.19.1) show a mass in the bladder posteriorly near the right ureterovesical junction with mild increased signal intensity obstructing the distal right ureter. Arterial phase and 10-minute delayed postgadolinium coronal 3D SPGR images from an MR urogram (...

scholarly journals Unusual Presentation of Popliteal Cyst on Magnetic Resonance Imaging

2016 ◽  
Vol 2016 ◽  
pp. 1-4 ◽  
Author(s):  
Tsuyoshi Ohishi ◽  
Masaaki Takahashi ◽  
Daisuke Suzuki ◽  
Yukihiro Matsuyama
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Signal Intensity ◽  
Final Diagnosis ◽  
Magnetic Resonance Images ◽  
Popliteal Cyst ◽  
High Signal ◽  
Resonance Imaging ◽  
Intermediate Signal Intensity ◽  
T2 Weighted Images

Popliteal cyst commonly presents as an ellipsoid mass with uniform low signal intensity on T1-weighted magnetic resonance images and high signal intensity on T2-weighted images. Here, we describe a popliteal cyst with unusual appearance on magnetic resonance imaging, including heterogeneous intermediate signal intensity on T2-weighted images. Arthroscopic cyst decompression revealed that the cyst was filled with necrotic synovial villi, indicative of rheumatoid arthritis. Arthroscopic enlargement of unidirectional valvular slits with synovectomy was useful for the final diagnosis and treatment.

Retro-Odontoid Pseudotumor Associated with Rheumatoid Arthritis

2021 ◽  
Vol 8 (6) ◽  
Author(s):  
Hajar A ◽  
◽  
Laila J ◽  
Laamrani FZ ◽  
◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Signal Intensity ◽  
Soft Tissue Mass ◽  
Bone Erosion ◽  
Imaging Modality ◽  
Odontoid Process ◽  
Cord Compression ◽  
Tissue Mass ◽  
Intermediate Signal Intensity ◽  
T2 Weighted Images

Retro-Odontoid Pseudotumor (ROP) commonly labeled as “pannus” is a non-neoplastic soft tissue mass adjacent to the odontoid process of C2 that is frequently associated with rheumatoid arthritis. It is due to inflammation and thickening of the synovium surrounding the dens and may lead to ligament laxity, and bone erosion resulting in C1-C2 joint laxity and subluxation with possible spinal cord compression. MRI is the imaging modality of choice to assess ROP and evaluate its extent. Three patterns of ROP are described following histological features; distinguish inflammatory hyper vascular pannus (hyperintense on T2-weighted images and enhancing) (Figure 1 and 2), combined pannus (intermediate signal intensity on T2- weighted images and intermediately enhancing), and fibrous pannus (low signal intensity on all sequences and non-enhancing).

Case 14.17

2014 ◽  
pp. 707-707
Author(s):  
Christine U. Lee ◽  
James F. Glockner
Keyword(s):  
Signal Intensity ◽  
High Signal Intensity ◽  
High Signal ◽  
History Of ◽  
The Right ◽  
T2 Weighted Images

30-year-old woman with a history of neurofibromatosis and a painful right thigh mass Axial (Figure 14.17.1A) and coronal (Figure 14.17.1B) FSE T1-weighted images and axial (Figure 14.17.2A) and coronal (Figure 14.17.2B) fat-suppressed FSE T2-weighted images reveal a large heterogeneous mass in the right pelvis extending into the groin with high signal intensity on T2-weighted images and regions of low and high signal intensity on T1-weighted images. Axial (...

Case 11.17

2014 ◽  
pp. 557-558
Author(s):  
Christine U. Lee ◽  
James F. Glockner
Keyword(s):  
Abdominal Pain ◽  
Signal Intensity ◽  
Lower Abdominal Pain ◽  
Cystic Component ◽  
History Of ◽  
T2 Weighted Images

51-year-old woman with a 1-month history of increasing lower abdominal pain Axial oblique FSE T2-weighted images (Figure 11.17.1) reveal enlarged ovaries bilaterally that contain elements of high and low signal intensity, as well as a small cystic component in the inferior right ovary. Axial oblique postgadolinium 2D SPGR images (...

scholarly journals Retroperitoneal Liposarcoma with Multilocular Cysts

2019 ◽  
Vol 13 (3) ◽  
pp. 514-520 ◽  
Author(s):  
Chika Komine ◽  
Minoru Fukuchi ◽  
Shinji Sakurai ◽  
Yuichi Tabe ◽  
Akihiko Sano ◽  
...  
Keyword(s):  
Signal Intensity ◽  
External Iliac Artery ◽  
Cystic Mass ◽  
Resonance Imaging ◽  
Solid Fat ◽  
Weighted Image ◽  
Intermediate Signal Intensity ◽  
Retroperitoneal Liposarcoma ◽  
History Of ◽  
Well Differentiated

In this study, we describe a 60-year-old man with a giant retroperitoneal liposarcoma with multilocular cysts. He was admitted to our hospital because of a 5-month history of abdominal distention. Abdominal computed tomography revealed a giant lobulated cystic mass occupying the retroperitoneal space that contained partially solid fat components. Magnetic resonance imaging indicated that this complex mass exhibited a low signal intensity on a T1-weighted image, whereas it exhibited a high and focally intermediate signal intensity on a T2-weighted image. This patient was diagnosed with a mucinous type of retroperitoneal sarcoma, which was then resected. During surgery, the tumor was isolated from the retroperitoneum and other organs, but the detachment was required only because of fixation around the left external iliac artery. The histological diagnosis was a well-differentiated liposarcoma with multilocular cysts that contained old bloody, serous, and mucinous fluids, which are a rare phenomenon in liposarcoma. This case indicates that retroperitoneal liposarcoma should also be considered as a differential diagnosis of retroperitoneal cystic mass.

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