PNH cells

PNH cells
abnormal erythrocytes seen in paroxysmal nocturnal hemoglobinuria (PNH); they are classified in three groups: PNH I cells, which have normal or nearly normal sensitivity to complement; PNH II cells, which require about one fourth as much complement as normal cells for an equal amount of lysis; and PNH III cells, which require about one fifteenth as much complement as normal cells for an equal amount of lysis.

Medical dictionary. 2011.

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