Placenta

A free gallery of high-resolution, ultrasound, color doppler and 3D images
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Ultrasound images of placental pathology:

 

Subchorionic cyst of the placenta:

 

ultrasound image of chorionic cyst        sonographic image of placental cyst

The two sonographic images above show a cystic lesion of the placenta, just below the placental surface. Few mobile echoes were seen within the lesion. No other abnormalities were seen in the placenta and the fetus. This finding is generally considered to be clinically of little significance. However some reports suggest an association with fetal IUGR (Intrauterine growth retardation). Diagnosis: subchorionic cyst of the placenta. Also known as membranous cyst, chorionic cyst. It is believed to be due to deposition of fibrin in the subchorionic region of the placenta. Images courtesy of Dr. Gunjan Puri, Surat, India.

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Reference: 1) http://www.jultrasoundmed.org/cgi/content/full/21/6/641 (free article)-- rated excellent by us.

 

Velamentous insertion of umbilical cord into placenta:

ultrasound image of velamentous insertion of the cord    color doppler image showing velamentous insertion of cord

These ultrasound and color doppler images show the umbilical cord inserting into the placental membranes before reaching the placental tissue proper. This is the typical appearance on sonography, of velamentous insertion of the umbilical cord. Ultrasound images courtesy of Dr. Latha Natrajan, Bangalore, India.

Reference: http://www.jultrasoundmed.org/cgi/content/full/25/8/963 (free article and images).. excellent

 

Vesicular mole (also called Molar pregnancy or Hydatidiform mole) in 1st trimester:

Vesicular mole    Hydatidiform mole

Doppler imaging of Vesicular mole    Sonography of vesicular mole

Sonography of the uterus was done in this 1st trimester pregnancy. Ultrasound and Power Doppler images reveal:

a) Hyperechoic mass in the uterine cavity with multiple cystic spaces within it. b) Uterus is enlarged (bulky) c) The myometrium is hypoechoic compared to the contents of the uterine cavity. These appearances can be likened to a "snowstorm" or "moth eaten" look. d) Power Doppler images show increased flow within the enlarged uterus. These ultrasound images suggest a sonographic diagnosis of Vesicular Mole. Ultrasound images were taken using a Nemio- XG machine by Joe Antony, MD, India.

Reference: http://www.ajronline.org/cgi/reprint/160/1/137.pdf

Placental calcification:

 

Calcific areas in placenta:

ultrasound image of placental calcification     sonography of calcific placenta

This 3rd trimester pregnancy shows extensive calcification of the basal plate (uterine or maternal surface) of the placenta. There is also calcification along the placental septa and chorionic plate. The calcific deposits in the placenta are seen as hyperechoic foci with acoustic shadowing. Such calcium deposits in the placenta suggest macroscopic calcification as opposed to micro-calcification seen in the 2nd and early 3rd trimester. Clinically and pathologically, calcific changes of placenta have no significance. More ultrasound images and short ultrasound video clips of placental calcification can be seen at:

http://cochinblogs.blogspot.com/2009/08/placental-calcification.html 

Placental mass (mass in placenta - Chorioangioma of placenta or Placental Chorioangioma):

a large mass of the placenta     ultrasound and Power Doppler images of placental tumor

large chorioangioma of the placenta    large solid mass of placenta with cystic spaces

Sonography of the placenta in this 16 week pregnancy shows a large, solid mass, that is non calcific and shows mild vascularity on Power Doppler imaging. The mass is inhomogenous and shows many cystic spaces within it. This tumor of the placenta lies close to the cord insertion site. Flow seen on Power Doppler image suggests that this placental tumor is vascular and excludes placental hematoma. Ultrasound images of this type of placental mass are highly suggestive of placental chorioangioma. The other diagnostic possibility can be a hamartoma of the placenta. Chorioangioma of placenta is the commonest tumor of the placenta and is benign in nature. This mass measures 12 x 8 cms., an unusually large size for a chorioangioma, and can signify poor prognosis for this pregnancy. Images courtesy of Jaydeep Gandhi, MD, India. These ultrasound images were taken with a Toshiba Nemio-30 Ultrasound system.

Reference: http://radiographics.rsna.org/content/27/4/1187.full   

 

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  This page was last edited on: Thursday December 17, 2009 02:14 PM  

Copyright ©   2007- All rights reserved- www.ultrasound-images.com Dr. Joe Antony, MD, Cochin- 20, India.

Scan centre: ULTRASCAN CENTRE, AL-FIA Building, Opp. Reserve Bank of India, ERNAKULAM,

COCHIN (KOCHI)- 682018, KERALA.

Ph: (Off.) 91-484-2403058, (Residence) 91-484-2311416, (Cell) 91- 93886-23088

Contact: joe@ultrasound-images.com or drjoea (at) gmail.com