Tiny ureteric calculus:

 This patient of suspected Lt. ureteric calculus revealed no pelvicalyceal dilatation on ultrasound imaging.

CT scan was useful in confirming the presence of the calculus.

Ultrasound images reveal an echogenic focus in the dilated left upper ureter. Mild dilatation of the upper ureter also noted.

Suspected left ureteric calculus on ultrasound.

CT scan with 3-D reconstruction confirms the presence of left ureteric calculus

Images courtesy of Dr. Ravi Kadasne, UAE.

For more information and ultrasound images of ureteric calculi and its effects on the urinary system, visit:

http://www.ultrasound-images.com/ureteric-calculi.htm

For ultrasound imaging of renal calculi and its various types see:

http://www.ultrasound-images.com/renal-calculi.htm

Angiomyolipoma:

 This is seen as an echogenic, rounded, usually small, mass lesion within the kidney.

It is a benign lesion and is usually, of little clinical significance. Image courtesy of

Dr. Durr-e-Sabih, Multan, Pakistan.

 

 

 Reference: 1) eMedicine - Angiomyolipoma, Kidney : Article by Ali Nawaz Khan ...


For more images, cases and various renal pathologies see:

http://www.ultrasound-images.com/kidneys.htm

A ureteric calculus and hydronephrosis:

The 3 ultrasound pictures above are of a young man of 27 yrs. age who presented with typical symptoms of right ureteric colic. Ultrasound scan shows hydronephrosis of the right kidney produced by a not -so- small right ureteric calculus. The right ureter is seen to be mildly dilated with a neat acoustic shadow beyond the ureteric stone.

 

Colour doppler of urinary bladder diverticulum (see picture above):

Acquired diverticuli of the urinary bladder result from outpouching of the mucosa due to chronic outlet obstruction. The above image shows the flow into and from the diverticulum (colored jet). This is a large diverticlum with a narrow neck. Image courtesy of Dr. Vikas Arora, Ferozepur, India.

 Reference: http://www.emedicine.com/ped/topic1402.htm

COLOUR DOPPLER IN EVALUATION OF BLADDER MASSES:

        This is a polypoid mass seen in the urinary bladder. B-mode ultrasound was used to identify the mass.

 Colour doppler, when turned on, shows the true vascular nature of the tumour, and helps to exclude

benign lesions like a hematoma. Findings are suggestive of carcinoma of the urinary bladder.

 IMAGES COURTESY OF DR. VIKAS ARORA, FEROZEPUR, INDIA. 

 

 

A CASE OF BLADDER MASS:

  This 46 yr. old male patient came with severe hematuria.

Ultrasound study of the distended bladder shows a solid, polypoid

mass of almost 4 cms. arising from the antero-lateral aspect of the

urinary bladder wall. No calcific foci are observed.

The mass does not appear to extend beyond the bladder wall.

Findings suggest carcinoma of the urinary bladder.

D/d: adherent clot, metastases.

 

 

 

The commonest malignancy of the bladder wall is TCC (transitional

cell carcinoma). Lesser known entities are squamous cell carcinoma,

and adenocarcinoma.

Where necessary, Transrectal ultrasound may be done to

better visualize such masses.

References: more information could be obtained from:

1) http://www.emedicine.com/med/topic3022.htm

2) http://www.surgical-tutor.org.uk/default-home.htm?system/urinary/tcc.htm~right

3) www.ams.ac.ir/AIM/0584/0010.pdf

4)http://www.emedicine.com/RADIO/topic711.htm

For more on ultrasound imaging of the urinary bladder see:

http://www.ultrasound-images.com/urinary-bladder.htm