Simple-renal-cyst

This article is targeted primarily for the layman as well as at medical students. 

Simple renal cyst also called renal cortical cyst. 

What is it? 

Renal cortical cyst is a sac of clear fluid forming within the cortex or outer part of the kidney. 

Cause:

Usually the result of obstruction of microscopic renal tubules within the kidney. Exact etiology of cyst of kidney is still unknown. 

Above ultrasound images show a typical cortical cyst in left kidney. 

This cyst of the left kidney is in the upper part and bulging outwards- so called exophytic cyst. 

Prognosis: such renal cortical cysts don't require treatment as such but need to be followed by repeat scan after a few months. If it grows larger- more than 5 cms or gets infected they need surgical treatment. 

See more:

https://www.ultrasound-images.com/kidneys/

Adenomyotic-cyst-of-myometrium

Unusually prominent adenomyotic cyst of myometrium.

Patient had dysmenorrhoea.

Also present a hemorrhagic cyst ovary. 

https://www.ultrasound-images.com/uterus/#Adenomyosis%20of%20uterus

Pulsatile-flow-in-veins

The lower limbs veins show pulsatile flow throughout the venous systgem - (in this case it was bilateral). Typical of right heart failure/ CCF.

Normal flow in veins shown below (normal veins in this patient). Mild phasicity is present along with augmentation on valsava manoever.  

see more: https://www.ultrasound-images.com/vascular/
                https://www.ultrasound-images.com/vascular-doppler-2/

Angiomyolipoma-ultrasound

Left kidney shows a small brightly echogenic rounded mass lesion s/o angiomyolipoma. 

See:

https://www.ultrasound-images.com/kidneys/

What-is-asteroid-hyalosis

A benign condition of the human eye, asteroid hyalosis is formation of particulate matter seen as bright echoes in the vitreous chamber of the eye. 

Mainly this is an ultrasound diagnosis with typical findings on sonography. 
Here's such a case study:

Read all about this strange sounding condition at:

https://www.ultrasound-images.com/eyes/#cataract-with-asteroid-hyalosis

3D-Ultrasound-PCOD

This 18 year old lady has irregular menses.
Ultrasound shows moderately enlarged ovaries with volume: Rt-- 24 cc. Lt-- 12 cc
Multiple small follicles are present in both ovaries.
3D ultrasound shows both ovaries and the uterus with it's normal endometrium.
PCOD ultrasound images

Severe-hydronephrosis

This middle-aged woman presented with gynecological complaints. 

But has severe left hydronephrosis!!

3D ultrasound images show the extent of the pathology. 

Moderate right hydronephrosis also. 

https://www.ultrasound-images.com/ureteric-calculi/

Almost 170 cc of residual urine. Suggests she has lower urinary tract obstruction.