From:
"Sukie Crandall"
Date: 2007-08-04 20:53:28 UTC
Subject: Re Kidney tied off during neuter Re: [ferrethealth] Digest Number 862
To: ferrethealth@yahoogroups.com
--- In ferrethealth@yahoogroups.com, "Nanci" <motorcityferrets@...> wrote:
>
> I'd have to go back and ask to remember when this happened...but a few
> years ago I remember our vet at the time exclaiming about the results
> of a recent surgery on a MF ferret. She was fully intact (uterus,
> ovaries) but was missing one kidney.
Have one kidney on one side, or having a horseshoe
shaped single kidney (both sides with a bridge
between the two sides) are not unusual variations in
some mammals. I don't know how common that
is among ferrets but it is a developmental variation
which can occur. My learning about that is very old
(dating to when I was student curator of a teaching
collection for an anatomy dept -- mostly mammalian
fossils, teeth, and bones, and took gross anatomy
(human) because I was planning on primatology
before serious illness cut short my education. At that
point a single and normal shaped kidney in a normal
position was thought to indicate that the other kidney
had failed for some reason during development, with
the possibility of blood supply or nerves not being
sufficient for development being two things I recall.
(If the ferret has neural crest variation markings such
genetic variants are under study in other species for
possible connections to a range of things including
possibly rates of some kidney differences. Alterations
to the Sympathetic Nervous System is among possible
hypothetical causes for possible differences in rates.)
Among humans it is cause to look for other possible
malformations but usually goes unspotted because
function is sufficient:
http://www.cbdmp.org/bd_kidney.htm
Although sufficient it is not always optimal:
http://www.springerlink.com/content/n217n2wl18568510/
I have no idea how common congenital unilateral kidney
is among ferrets.
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