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.

scholarly journals Diagnostic value of magnetic resonance imaging in the analysis of ameloblastoma: report of two cases

2019 ◽  
Vol 22 (3) ◽  
pp. 425-431
Author(s):  
Neiandro Santos Galvão ◽  
Antonione Santos Bezerra Pinto ◽  
Alan Leandro Carvalho Farias ◽  
André Luiz Ferreira Costa ◽  
Sérgio Lúcio Pereira de Castro Lopes ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Differential Diagnosis ◽  
Magnetic Resonance ◽  
Signal Intensity ◽  
Diagnostic Value ◽  
Resonance Imaging ◽  
Intermediate Signal Intensity ◽  
Additional Information ◽  
Imaging Characteristics ◽  
Magnetic Resonance Imaging Mri

Ameloblastoma is an odontogenic tumor that shares clinical and imaging characteristics with other lesions of the jaws, such as odontogenic keratocyst, which makes the diagnosis difficult. However, in addition to radiographic and tomographic examinations, Magnetic Resonance Imaging (MRI) has been increasingly used, contributing with relevant additional information about the differentiation between solid and liquid components of the lesion. This case report was conducted to present two variations of ameloblastoma and discuss the radiographic, tomographic and MRI contribution in the differential diagnosis between ameloblastoma and odontogenic keratocyst.The signal intensity in T1-weighted MRI revealed internal fluid content in both cases, which was important in the differential diagnosis with other intraosseous lesions such as odontogenic keratocysts. This is probably due to the presence of keratin that increases the viscosity of the content and also for an intermediate signal intensity signal in T2-weighted MRI. Therefore, MRI revealed important internal characteristics of the reported lesions, which was very useful in the establishment of the differential diagnosis with other lesions.

Case 11.18

2014 ◽  
pp. 559-560
Author(s):  
Christine U. Lee ◽  
James F. Glockner
Keyword(s):  
Goblet Cell ◽  
Signal Intensity ◽  
Hepatic Metastases ◽  
High Signal Intensity ◽  
High Signal ◽  
Goblet Cell Carcinoid ◽  
Diffusion Weighted Image ◽  
Axial Diffusion ◽  
Weighted Image ◽  
History Of

46-year-old woman with history of appendiceal goblet cell carcinoid, resected 3 years previously, who underwent MRI to assess for hepatic metastases Axial fat-suppressed FSE T2-weighted images (Figure 11.18.1) and sagittal fat-suppressed 2D SSFP image (Figure 11.18.2) reveal a large, mildly heterogeneous mass in the central pelvis superior to the uterus with diffusely high signal intensity and a few scattered cystic components. Axial diffusion-weighted image (b=800 s/mm...

Case 8.11

2014 ◽  
pp. 391-392
Author(s):  
Christine U. Lee ◽  
James F. Glockner
Keyword(s):  
Signal Intensity ◽  
Arterial Phase ◽  
Weighted Image ◽  
History Of

37-year-old woman with a history of neurofibromatosis and menometrorrhagia Sagittal fat-suppressed 3D FSE T2-weighted image (Figure 8.11.1) and axial 2D fat-suppressed FSE images (Figure 8.11.2) reveal masslike thickening of the posterior and superior bladder walls, with relatively low signal intensity. Sagittal arterial phase postgadolinium 3D SPGR image (...

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 1.27

2014 ◽  
pp. 54-55
Author(s):  
Christine U. Lee ◽  
James F. Glockner
Keyword(s):  
Venous Thrombosis ◽  
Deep Venous Thrombosis ◽  
Signal Intensity ◽  
Pulmonary Emboli ◽  
Axial Diffusion ◽  
Weighted Image ◽  
Hepatic Lobe ◽  
P 75 ◽  
History Of ◽  
The Right

75-year-old woman with a history of deep venous thrombosis and pulmonary emboli Coronal SSFSE (Figure 1.27.1) and axial fat-suppressed FSE T2-weighted (Figure 1.27.2) images reveal a large exophytic mass projecting inferiorly from the right hepatic lobe, with a few scattered foci of mildly increased signal intensity. Axial diffusion-weighted image (b=400 s/mm...

Case 1.24

2014 ◽  
pp. 47-49
Author(s):  
Christine U. Lee ◽  
James F. Glockner
Keyword(s):  
Signal Intensity ◽  
Alcoholic Cirrhosis ◽  
Diffusion Weighted Image ◽  
Weighted Image ◽  
Hepatic Lobe ◽  
Diffusion Weighted ◽  
History Of ◽  
And Diffusion

57-year-old man with a history of alcoholic cirrhosis Axial fat-suppressed FSE T2-weighted (Figure 1.24.1) and diffusion-weighted (b=100 s/mm2) (Figure 1.24.2) images demonstrate a peripheral right hepatic lobe mass that has mildly increased signal intensity relative to adjacent liver. Notice the higher signal intensity and greater contrast on the diffusion-weighted image (b=100 s/mm...

scholarly journals Synchronization of Synovial Chondromatosis and Mycobacterium intracellurae Infection in Olecranon Bursitis: A Case Report

2019 ◽  
Vol 22 (1) ◽  
pp. 46-49
Author(s):  
Dong Hyun Kim ◽  
Seunggi Min ◽  
Hyun Joo Lee ◽  
Hee-June Kim ◽  
Hoseok Lee ◽  
...  
Keyword(s):  
Past History ◽  
Mycobacterial Infection ◽  
Synovial Chondromatosis ◽  
Cystic Mass ◽  
Resonance Imaging ◽  
Olecranon Bursitis ◽  
Rice Bodies ◽  
History Of ◽  
Magnetic Resonance Imaging Mri ◽  
Mri Characteristics

A 73-year-old woman presented with a recurrent cystic mass around her left olecranon. She had a history of 8 steroid injections due to elbow pain beginning 3 years ago and twice had undergone aspiration of olecranon bursitis that developed two months prior to presentation. She had been taking medications for hypertension and diabetes with no pertinent past history. On magnetic resonance imaging (MRI), there were multiple nodules in the olecranon bursa, which were isointense to muscle on T1-weighted images and hyperintense to muscle on T2-weighted images. Our initial diagnosis was synovial chondromatosis. On bursoscopy, masses of gray-white colored nodules were observed in the bursa. Finally, synovial chondromatosis and non-tuberculous mycobacterial infection were concurrently diagnosed. In conclusion, uncalcified synovial chondromatosis and rice bodies can have similar visual and MRI characteristics; therefore, we suggest that clinicians should be aware of the possibility of other infections in cases of this type.

scholarly journals Polyorquidism: case report comparing ultrasonography and magnetic resonance imaging

2020 ◽  
Vol 20 (3) ◽  
pp. 899-903
Author(s):  
Lucas Ribeiro dos Santos ◽  
Márcio Luís Duarte ◽  
Élcio Roberto Duarte ◽  
Felipe Nunes Figueiras
Keyword(s):  
Magnetic Resonance Imaging ◽  
Case Report ◽  
Magnetic Resonance ◽  
Signal Intensity ◽  
World Literature ◽  
High Signal ◽  
Resonance Imaging ◽  
Intermediate Signal Intensity ◽  
Imaging Characteristics ◽  
Initial Clinical Evaluation

Abstract Introduction: polyorchidism is an unusual pathology, about 200 cases in the world literature. Case report: we reported a case of polyorchidism in a 16-year-old male patient diagnosed by ultrasound and confirmed by magnetic resonance imaging. Discussion: most of the cases presented, there is a supernumerary testis, but there are reports on more than three, up to five testicles with supranumerical gonads on both sides of the scrotum. The diagnosis is usually performed in late puberty, incidentally, with a painless scrotal mass or at the emergency room, presenting a testicular torsion of the whole hemiscrotum or supernumerary testisalone, and the differential diagnosis should be made with epididymal cyst and spermatocele, besides other extra-testicular masses (hydroceles, varicoceles, lipomas, tumors.) and para-testicular masses (hernias, scrotal calculi). After the initial clinical evaluation, ultrasound is the first line subsidiary exam. Magnetic Resonance Imaging is very helpful, just in case the ultrasound diagnosis is uncertain. The supernumerary testishave the same Magnetic Resonance Imaging characteristics as the normal testes (intermediate signal intensity on T1- weighted images and high signal intensity on T2-weighted images).

Primary peritoneal mucinous cystadenocarcinoma mimicking possible recurrent ovarian mucinous cystadenoma: coincidental pathology or a spectrum of disease?

2021 ◽  
Vol 14 (7) ◽  
pp. e242478
Author(s):  
Claire Filippini ◽  
Sarah Smyth ◽  
Hooman Soleymani Majd ◽  
Catherine Johnson
Keyword(s):  
Magnetic Resonance ◽  
Young Patient ◽  
Management Strategies ◽  
Mucinous Cystadenoma ◽  
Magnetic Resonance Cholangiopancreatography ◽  
Cystic Mass ◽  
Mucinous Cystadenocarcinoma ◽  
Surgical History ◽  
History Of ◽  
Well Differentiated

We present the case of a 32-year-old woman with a previous surgical history of benign mucinous cystadenoma resected in 2012 who underwent magnetic resonance cholangiopancreatography following her second pregnancy in 2020. This demonstrated a large cystic mass in the left subdiaphragmatic space. Histopathology confirmed a well-differentiated primary peritoneal mucinous cystadenocarcinoma displaying cells of a Mullerian origin. We subsequently discuss the aetiology of these conditions separately and explore the possibility of a connection between the two regarding origin or potential malignant transformation that may otherwise have occurred coincidentally in this young patient. We also acknowledge a paucity of evidence regarding subsequent management strategies.

Case 8.17

2014 ◽  
pp. 403-404
Author(s):  
Christine U. Lee ◽  
James F. Glockner
Keyword(s):  
Signal Intensity ◽  
Bladder Wall ◽  
Prostate Adenocarcinoma ◽  
High Signal Intensity ◽  
High Signal ◽  
Diffusion Weighted Image ◽  
Axial Diffusion ◽  
Weighted Image ◽  
Endorectal Coil ◽  
History Of

68-year-old man with a history of prostatectomy for prostate adenocarcinoma, increasing nocturnal urinary frequency, and rising PSA level Sagittal FSE T2-weighted image (Figure 8.17.1) obtained using an endorectal coil shows a large lobulated mass in the posterior bladder wall extending superiorly to the dome and inferiorly to the vesicourethral junction. The mass has high signal intensity on an axial diffusion-weighted image (b=1,000 s/mm...

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