Dermoid cyst of ovary:

Dermoid cysts of ovary are also known as mature cystic teratoma or benign teratomas of the ovary. This young lady in her early twenties was found to have bilateral dermoid cysts of the ovaries, although small ones at 2 to 3 cms. size.

The above ultrasound video clip shows one such case with dermoid cysts in both ovaries.
The mature cystic teratoma or dermoid cysts are seen as hyperechoic masses in the ovaries.
See: http://www.ultrasound-images.com/ovaries.htm#Ovarian_dermoid_cyst_or_Cystic_teratomas

Adenomyomatosis of gallbladder

The ultrasound video clip above is a classic example of adenomyomatosis of the gall bladder. This word sounds similar to adenomyosis but there is a world of a difference between these two terms. Adenomyosis is a disease of the uterus and is characterized by development of endometrial tissue within the walls of the muscular layer of the uterus and is hence seen only in women.
   Adenomyomatosis, on the other hand, is a disease of the gall bladder and is of a chronic nature resulting in fine stones (GB calculi made of cholesterol usually) within crypts in the thickened gallbladder walls.
Read more on this topic at: http://www.ultrasound-images.com/gb-wall.htm#Diffuse_adenomyomatosis_of_gall_bladder
One more ultrasound video clip of this condition is shown below:
 
In addition to the diagnosis of adenomyomatosis of the gallbladder, observe the large stone or GB calculus seen in the gall bladder neck.

Fetal cardiac activity in 6 weeks embryo

This 6 week old pregnancy came for ultrasound imaging to check for the viability of the embryo. Ultrasound imaging could barely visualize the embryo, due to maternal obesity. On zooming in on the embryo, we could visualize this embryo with a suggestion of cardiac activity.


A color Doppler ultrasound study of the embryo showed this:

Clearly, the embryonic cardiac activity is visualized as a blip of color on Color Doppler. This helped avoid a transvaginal ultrasound scan study.

Spectral Doppler trace of the embryonic heart further confirmed normal cardiac activity and heart rate in the early embryo (HR= 130 beats/minute).
Visit: http://www.ultrasound-images.com/early-pregnancy.htm