Tuesday, October 5, 2010

Is it just me....

... or does everyone see extramedullary hematopoesis in the majority of their chronic subdural hematoma specimens? Here's yet another example that landed on my desk today:

6 comments:

Hannes said...

Hi,
Yes I see it frequently. Also, there can be an impressive infiltrate of eosinophils in these as well.
Hannes

shipcolldoc said...

I see it frequently, but not in over half of the cases. Sometimes the eos are part of the process, sometimes, they are by themselves and seem just reactive.

Brian E. Moore, MD said...

It makes one wonder what the mechanism of EMH is in these bleeds. Also, I wonder whether chronic bleeds elsewhere in the body show the same phenomenon.

Agent 86 said...

Lot of inbreeding in your neck of the woods, as I recall. Perhaps that has something to do with it?

Rasmus said...

I see it all the time. I would agree with "majority". Perhaps the microenvironment in these chronic subdurals resembles bone marrow stroma, inviting stem cells to settle down and start a family.

jensflorian said...

Hava a look in the 4th ed of "Surgical pathology of the nervous system". Fig. 7-44 on p.418 shows a picture of extramedullary hematopoiesis stating that these are "not uncommon in the outer membrane of CSDH".