Intrinsic vs. extrinsic anemias

fibrin

Q. Can you help me understand intrinsic vs. extrinsic anemias? My concept of it is that intrinsic means it’s in the blood vessels and extrinsic means it’s in the spleen. (more…)

CREST syndrome

Raynaud-hand2

CREST syndrome is one expression of a larger disease known as systemic sclerosis (or, if you’re stuck in your ways like me, “scleroderema”). (more…)