Hypoechoic nodule with high risk of malignancy

 

This hypoechoic left lobe thyroid nodule shows breach of the anterior layer of the thyroid capsule- a sign of potential thyroid malignancy. There is also some micro-calcification. The only point against carcinoma is the absence of significant vessels within the thyroid nodule.

 

For more on this topic:

http://www.ultrasound-images.com/thyroid-2.htm

A patient of calf and leg pain- venous Doppler study

What do you feel based on these images of lower limb venous Doppler?  A patient of calf and leg pain:

 

A case of ectopic right kidney

Empty right renal fossa with right kidney way down in right para-umbilical region close to IVC.

The right kidney is kissing the IVC seen in blue. Is there also a bridge of renal tissue anterior to IVC? That would suggest a horseshoe kidney.

 

For more on related topics see

http://www.ultrasound-images.com/kidneys.htm#Ectopic/ Pelvic kidney

prominent fetal cisterna magna or more ominous?

This was a 34 week old fetus. No other positive findings were noted.

 

the answer: mega cisterna magna in third trimester fetus. The points favouring this diagnosis:

widened cisterna magna, but normal cerebellar vermis and fourth and lateral ventricles.

For more on this visit:

http://www.ultrasound-images.com/fetal-brain.htm#mega-cisterna-magna 

A patient of subclavian arterial bruit

This is a 20 yr old female patient with no other complaints than a rather prominent and palpable bruit in left supraclavicular region. What do you make of these color and spectral Doppler images? The right side is also shown for comparison:
The subclavian arteries of both sides:

 

The left axillary and brachial arteries:

 

The left radial and right radial and ulnar arteries:

Hidden VUJ calculus

This male patient reveals the difficulties the radiologist often faces when trying to discover the location of a ureteric calculus. At first the patient complained of pain in the left iliac region suggested a case of mid ureteric calculus. However, despite the hydronephrosis of the left kidney and a mild hydroureter on the left side, it was very difficult to locate a calculus which was actually located at its distal end, namely the left vesico-ureteric junction. a lot of factors were unfavourable to locate this calculus at the left vesicoureteric junction. First, the patient had a rather hyper distended bladder. Also, the left hydroureter was mild. Besides, the patient also had significant bowel gas. finally, the calculus itself was rather small at 6.5 mm.

The urinary bladder:

 

The Left Kidney and left VUJ:

  

The left VUJ calculus:

 

References:

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

A simple quiz- what is your diagnosis?

What is your diagnosis in this young woman with abdominal pain.
3D ultrasound images are shown below:

the answer is: a large gallbladder calculus located close to its neck.
Here are more images of the same case, the first is a 2-D ultrasound image,
the second is a 3-D Ultrasound image of the same case showing the gallbladder calculus is a large echogenic structure within it.