Items tagged “kidney”
344 results found
Case
Horseshoe kidney with renal stones
Published
29 May 2010
73% complete
X-ray
CT
Case
Renal cell carcinoma - type II papillary
Published
29 May 2010
78% complete
CT
MRI
Case
Medullary sponge kidney
Published
29 May 2010
100% complete
CT
Article
Developmental anomalies of the kidney and ureter
Developmental anomalies of the kidneys and ureters are numerous and not only potentially render image interpretation confusing but also, in many instances, make the kidneys more prone to pathology:
number
renal agenesis
supernumerary kidney
fusion
horseshoe kidney: most common
cross fused ...
Article
Sigmoid kidney
A sigmoid kidney is an uncommon variant of the horseshoe kidney. Whereas the typical horseshoe kidney is fused only at the lower poles, in a sigmoid kidney both the upper and the lower poles are fused 1.
Article
Staghorn calculus (kidney)
Staghorn calculi, also sometimes called coral calculi, are renal calculi that obtain their characteristic shape by forming a cast of the renal pelvis and calyces, thus resembling the horns of a stag. They refer to struvite calculi involving the renal pelvis and extending into at least two calyce...
Article
Medullary nephrocalcinosis
Renal medullary nephrocalcinosis is the commonest form of nephrocalcinosis and refers to the deposition of calcium salts in the medulla of the kidney. Due to the concentrating effects of the loops of Henle, and the biochemical milieu of the medulla, compared to the cortex, it is 20 times more co...
Article
Cortical nephrocalcinosis
Renal cortical nephrocalcinosis is ~20 times less common than medullary nephrocalcinosis.
Pathology
Etiology
renal cortical necrosis: common 2
renal infarction/ischemia
sepsis
toxemia of pregnancy
drugs
snake bites
arsenic poisoning
extracorporeal shock wave lithotripsy (ESWL)
hemolyt...
Case
Pelviureteric junction obstruction
Published
31 May 2010
89% complete
CT
Case
Tuberculous autonephrectomy
Published
01 Jun 2010
89% complete
CT
Article
Xanthogranulomatous pyelonephritis
Xanthogranulomatous pyelonephritis (XGP) is a rare form of chronic pyelonephritis and represents a chronic granulomatous disease resulting in a non-functioning kidney. Radiographic features are usually specific.
Epidemiology
Xanthogranulomatous pyelonephritis is seen essentially in all age gro...
Article
Bear paw sign (kidney)
The bear paw sign refers to the cross-sectional appearance of the kidney affected by xanthogranulomatous pyelonephritis. There is a radial arrangement of multiple, low attenuation rounded spaces representing dilated calyces, surrounded by thin renal parenchyma that has higher attenuation or cont...
Case
Xanthogranulomatous pyelonephritis (gross pathology)
Published
02 Jun 2010
54% complete
Pathology
Photo
Article
Acute pyelonephritis
Acute pyelonephritis (plural: acute pyelonephritides) is a bacterial infection of the renal pelvis and parenchyma most commonly seen in young women. It remains common and continues to have significant morbidity in certain groups of patients.
Epidemiology
The incidence of acute pyelonephritis p...
Article
Striated nephrogram
Striated nephrogram is a descriptive term indicating the appearance of alternating linear bands of high and low attenuation in a radial pattern extending through the corticomedullary layers of the kidney on iodine-based intravenous contrast-enhanced imaging.
It is important to know that a simil...
Article
Cortical rim sign (kidneys)
The cortical rim sign describes the thin, viable rim of subcapsular cortex seen on contrast-enhanced CT or MRI in major renal vascular compromise including:
renal artery obstruction from embolism, thrombosis or dissection
renal vein thrombosis
acute tubular necrosis
acute cortical necrosis
...
Article
Lobar nephronia
Lobar nephronia, also known as acute focal nephritis, refers to an intermediate stage between acute pyelonephritis and renal abscess, and is a focal region of interstitial nephritis.
It appears as a wedge of poorly perfused renal parenchyma, without a cortical rim sign.
The condition is discu...
Case
Renal abscess and renal vein thrombosis
Published
02 Jun 2010
80% complete
CT
Ultrasound
Case
Urothelial thickening - urinary tract infection
Published
05 Jun 2010
57% complete
Ultrasound
Case
Renal cell carcinoma with metastases
Published
08 Jun 2010
76% complete
CT
Unable to process the form. Check for errors and try again.