My sister has an infected lymph node, and I was having a look at some of her puss. I found this. What is it?

Nice picture. What did you use to take that?

 

I know nothing about bio, so can't help with your question.

I just lined my camera up with my microscope eye peice.

Perhaps with a scale or some H&E staining it would be easier to tell.

That is at 400x

It's mononuclear. Probably a monocyte or a leukocyte. You say it was in the pus? Then possibly a dying monocyte or leukocyte. That would account for the odd shape (both cells should be spherical). Or perhaps your processing squished it.

thats beautiful. thick membrane

aahh star trek communicator badge disease. she'll be fine in a few days but might not be able to contact the enterprise if the is an ion flux in the atmosphere.

thats beautiful. thick membrane

 

I don't think the thick portion is the membrane. I think it is an artifact of the processing. I suspect it is the edges of the liquid in which the cell is suspended -- the rest has dried up. The cell membrane parallels the thick part just inside it.

I'd say that you're correct. The thick part and curve at the bottom is probably part of the environment around the cell. Probably some water combined with various glycoproteins/ other cell matrix materials producing a kind of jelly effect. The object within is probably a White blood cells (a.k.a. leukocytes).

 

Staining it would really help but it does look somewhat like one of these no?

http://en.wikipedia.org/wiki/Leukocyte

I'd say that you're correct. The thick part and curve at the bottom is probably part of the environment around the cell. Probably some water combined with various glycoproteins/ other cell matrix materials producing a kind of jelly effect. The object within is probably a White blood cells (a.k.a. leukocytes).

 

Staining it would really help but it does look somewhat like one of these no?

http://en.wikipedia.org/wiki/Leukocyte

 

I think so. I'd say "monocyte" but it could easily be one of the granulocytes. The OPer said he got this from a sample of pus. So the thick part would be consistent with water combined with proteins/components left over from dead bacteria and cells. We don't know much more about the processing of the tissue, and I don't think the poster has access to stains, unfortunately.