We have seen these structures. They looked like hair follicles to us. We saw
them in subcutaneous fat and not in epididymal fat.
-----Original Message-----
From: histonet-bounces@lists.utsouthwestern.edu
[mailto:histonet-bounces@lists.utsouthwestern.edu] On Behalf Of Mary A.
Ascenzi
Sent: Tuesday, December 11, 2007 10:08 PM
To: Amos Brooks; histonet@lists.utsouthwestern.edu
Subject: Re: [Histonet] Glands in mouse fat
Sounds like brown fat, found in mice and other small mammals and in
hibernators. It is sometimes mistaken for a gland. Energy stored in
brown fat is released as heat. Here is one website, but if you google
"brown fat mouse" you can find some photomics and more info.
www.vivo.colostate.edu/hbooks/ pathphys/misc_topics/brownfat
Mary Ascenzi
>Hi,
> I have a sample of adipose tissue from a mouse. The researcher
>described it as subdermal "deep fat" from the back of the mouse. The tissue
>appeared to have glands of some sort and I was having difficulty
identifying
>it. The tissue is islands of glands surrounded in adipose. The 'glands'
have
>a ring of cuboidal epithelium and a eosinophillic colloid of some sort
>inside.
> My experience is almost exclusively on human tissue so I'm a bit
>stumped. Initially I thought sweat gland or apocrine as it was near the
>skin, but (...duh) no sweat glands in mice. My next thought was that it had
>to be breast tissue. The histology looks the same (cuboidal epithelium,
>colloid, adipose) but the researcher says it is from the back of the mouse
>and he thinks the mouse was male. I asked if he was sure, it must have been
>a mouse with one heck of an identity crisis!
> So, I'll toss this into the ring. Does anyone have any ideas as to
what
>this is. At this point it is really a matter of curiosity, but it is eating
>me up! I really should get an atlas of mouse anatomy & histology. Any
>suggestions?
>
>Thanks much,
>Amos Brooks
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