In the thrombotic microangiopathy cases, which red blood cell fragment is most typically seen on peripheral smear?

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Multiple Choice

In the thrombotic microangiopathy cases, which red blood cell fragment is most typically seen on peripheral smear?

In thrombotic microangiopathy, red blood cells are torn as they pass through damaged, narrowed microvessels, causing intravascular fragmentation. The typical fragment seen on the peripheral smear is schistocytes, often described as helmet-shaped fragments, reflecting mechanical destruction in microangiopathic hemolytic anemia. Other forms like acanthocytes or spur cells are membrane-oddities seen in liver disease or lipid disorders, and elliptocytes are elongated cells seen in hereditary elliptocytosis or iron deficiency—none of which are characteristic of TMA. So the fragmented RBCs known as schistocytes are the hallmark on the smear.

In thrombotic microangiopathy, red blood cells are torn as they pass through damaged, narrowed microvessels, causing intravascular fragmentation. The typical fragment seen on the peripheral smear is schistocytes, often described as helmet-shaped fragments, reflecting mechanical destruction in microangiopathic hemolytic anemia. Other forms like acanthocytes or spur cells are membrane-oddities seen in liver disease or lipid disorders, and elliptocytes are elongated cells seen in hereditary elliptocytosis or iron deficiency—none of which are characteristic of TMA. So the fragmented RBCs known as schistocytes are the hallmark on the smear.

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