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1.  A Case of an Idiopathic Massive Osteolysis with Skip Lesions 
Korean Journal of Radiology  2013;14(6):946-950.
A patient with a 2-year history of pain in the left arm, and decreased strengths unrelieved by non-steroidal anti-inflammatory therapy, was being referred for repeating radiography. The radiologic examinations have demonstrated a unique pattern of non-contiguous osteolysis in the left elbow, proximal and distal radius, ulna, wrist, carpal bones, proximal and distal metacarpals and phalanges. Multi-site biopsies were being performed and confirmed the diagnosis of massive osteolysis. To our knowledge, this is the first case in which multifocal, non-contiguous osteolysis with skip lesions without associated nephropathy and without a hereditary pattern is being described in one extremity.
PMCID: PMC3835643  PMID: 24265571
Idiopathic osteolysis; Gorham-Stout syndrome; Disappearing bone disease
2.  Shear-Wave Elastography of Segmental Infarction of the Testis 
Korean Journal of Radiology  2012;13(6):820-822.
Segmental testicular infarction (STI) is a rare cause of acute scrotum. The spectrum of findings on gray-scale and color Doppler ultrasonography differ depending on the time between the onset of testicular pain and the ultrasonography examination. We are not aware of the usefulness of shear-wave elastography for the diagnosis of STI. We report the shear-wave elastography features in a case of STI and discuss the role of this diagnostic modality in the differential diagnosis.
PMCID: PMC3484306  PMID: 23118584
Testis; Infarction; Ultrasonography; Sonoelastography; Doppler ultrasonography
3.  Giant Multilocular Cystadenoma of the Prostate: A Rare Cause of Huge Cystic Pelvic Mass 
Korean Journal of Urology  2012;53(3):209-213.
Giant multilocular prostatic cystadenoma is a rare benign tumor that evolves from the prostate gland. Obstructive voiding symptoms occur in all reported cases. These lesions do not invade adjacent structures. Preoperative radiologic evaluation can define the benign nature of the lesion. Here we report a case of large cystic lesions identified by magnetic resonance imaging and sonographic findings that caused an extensive mass effect in the pelvis. When retrovesical, huge cystic lesions fill the pelvis completely in young men, with high levels of serum prostate-specific antigen, giant multilocular prostatic cystadenoma should be considered as a differential diagnosis. To our knowledge, this is the youngest case of prostatic cystadenoma reported in the literature.
PMCID: PMC3312072  PMID: 22468219
Cystadenoma; Prostate; Prostatic neoplasms
4.  Cerebrospinal fluid flow dynamics in patients with multiple sclerosis: a phase contrast magnetic resonance study  
Functional Neurology  2012;26(4): 215 - 222 .
Cerebrospinal fluid (CSF) flow dynamics, which supposedly have a strong relationship with chronic cerebrospinal venous insufficiency (CCSVI), might be expected to be affected in multiple sclerosis (MS) patients. In this study, CSF flow at the level of the cerebral aqueduct was evaluated quantitatively by phase contrast magnetic resonance imaging (PC-MRI) to determine whether CSF flow dynamics are affected in MS patients. We studied 40 MS patients and 40 healthy controls using PC-MRI. We found significantly higher caudocranial (p=0.010) and craniocaudal CSF flow volumes (p=0.015) and stroke volume (p=0.010) in the MS patients compared with the controls. These findings may support the venous occlusion theory, but may also be explained by atrophy-dependent ventricular dilatation independent of the venous theory in MS patients.
PMCID: PMC3814558  PMID: 22364942
cerebrospinal fluid ;  chronic cerebrospinal venous insufficiency ;  magnetic resonance imaging ;  multiple sclerosis
5.  Testicular Arteriovenous Malformation: Gray-Scale and Color Doppler Ultrasonography Features 
Case Reports in Medicine  2011;2011:876206.
Intratesticular arteriovenous malformations (AVMs) are extremely rare benign incidental lesions of the testis. Ultrasonography (US) generally reveals a hypoechoic solid mass within the testicular parenchyma. We describe a patient with intratesticular AVM which was found incidentally during workup for infertility. The gray-scale and Doppler US appearance of an intratesticular AVM and the differential diagnosis have been presented. Based on the gray-scale, US appearance differentiation from malignant testicular tumors is difficult. Doppler US examination aids in the diagnosis by demonstrating the vascular nature of the tumor.
PMCID: PMC3139914  PMID: 21785607

Results 1-5 (5)