Related Experiment Video
Updated: Jan 26, 2026

Use of MRI-ultrasound Fusion to Achieve Targeted Prostate Biopsy
Published on: April 9, 2019
IgG4-related Periarteritis Successfully Diagnosed by an Alternative Prostate Biopsy
Ryo Koda1, Masafumi Tsuchida1, Noriaki Iino1
1Department of Nephrology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan.
Abstract:
A 56-year-old man was referred to our facility after developing edema in his right leg. Enhanced computed tomography (CT) revealed a periarterial soft tissue mass surrounding the right iliac artery compressing the iliac vein. His elevated serum IgG4 level indicated IgG4-related disease (IgG4-RD). Both a percutaneous and surgical biopsy of this periarterial lesion proved challenging and were not pursued. A prostate biopsy, however, finally provided a histological diagnosis of IgG4-RD. Oral steroid therapy successfully resolved his leg edema and periarterial lesion. This case illustrates the usefulness of an alternative prostate biopsy for the histological diagnosis of IgG4-RD when approaching the primary affected lesion is difficult.
More Related Videos
Related Concept Videos
Diagnosing Acidosis and Alkalosis
First, the pH level is assessed to determine whether the blood pH is normal (7.35–7.45), low (acidosis), or high (alkalosis).
Next, the PCO2 and...
Alternative RNA Splicing
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
Alternative RNA Splicing
Null and Alternative Hypotheses
The null hypothesis, denoted by H0 is a statement of no difference between the variables—they are not related. This can often be considered the status quo. As a result if you cannot accept the null, it requires some action.
The alternative hypothesis, denoted by H1 or Ha, is a claim about the...
Electric Generator: Alternator
The magnetic flux passing through the coil varies sinusoidally as the loop rotates inside the magnetic field. This...
Alternative Sets of Equilibrium Equations
One example of such a situation can be observed in a...

