Methemoglobinemia is a blood disorder in which an abnormal amount of methemoglobin is present in the blood. MetHb is a form of hemoglobin (Hb) that has been oxidized, so...
Churg-Strauss Syndrome (Eosinophilic Granulomatosis with Polyangiitis) is a rare but serious multisystem vasculitis characterized by inflammation of small-...
What is Fat Embolism Syndrome?
Fat embolism syndrome (FES) is a condition in which fat particles get into your bloodstream and block blood flow. The...
What is Renal Artery Stenosis?
As words suggest, renal arteries mean vessels of kidneys, and stenosis means narrowing. Renal artery stenosis is defined as the...
Pericardial effusion is a medical condition in which fluid abnormally accumulates in the pericardial sac, the protective, sac-like structure surrounding the heart. The term...
What are Reticular Veins?
Reticular veins, sometimes called feeder veins or blue veins, are dilated veins with a diameter of less than 3.0 millimeters. Unlike...