All of the following are associated with coombs positive hemolytic anemia except –
Correct Answer: Thrombotic thrombocytopenia purpura (TTP)
Description: Coombs is positive only in immune hemolytic anemias where there is hemolysis of RBCs by antibodies produced in the body which is the case in SLE ,PAN & Scleroderma. While in TTP hemolysis occurs due to trauma to RBCs due to Microangiopathic hemolysis, seen in TTP &HUS Ref Robbins 9/e pg 448-449
Category:
Pathology
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