Re: short femurs

From: ATB28@aol.com
Thu May 27 09:03:20 1999


In a message dated 5/26/1999 7:16:12 PM Pacific Daylight Time, nd84md@aol.com writes:

<< just got a stat call from my sister in law. during her routine 17week ultrasound she was told that the baby's femurs were "short" at only 15 weeks size. no other problems, she is 33 and has a normal tri screen. even if these femurs are short, is there reason to consider an amnio for such an isolated finding. i think not; any suggestions?

-- CJ Stanley,MD, FACOG >>

CJ: Aside from the most likely diagnosis (constitutional, variant of normal), one obvious concern is achondroplasia or other skeletal dysplasia. This can be a very difficult ultrasonographic diagnosis to make, and relies as much on femur length as shape of the bones (bowing) - the reliability of which is often suspect until well after 20 weeks. In my mind this would be a *very* soft sign for aneuploidy. What other findings? Shape of head? Hands? Heart? ---> Genetic counseling....

Keep us informed. Allan T. Bombard, MD, FACOG, FACMG Oakland, CA





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