Hi Naive and David,
I am a cause and effect kind of gal and am always trying to find connections with different ailments.
I did a quick search on what David talked about and there are accounts on the internet that connect sarcoidosis and pancytopenia. I didn't look for all blood counts but there may be a connection. Because of the claims of Agent Orange from Viet Nam now causing MDS I don't know that causes can be ruled out just because of time passed.
What I have found over the years is that doctors aren't able to research our individual situations so we have to do it ourselves. I have enlightened more than one doctor with my research.
As far as auto-immune situations, there can be auto-immune components to these marrow problems so I would think it could manifest itself elsewhere but I'm no doctor - I just pretend to be.
All the best to you both,