patients receiving very high doses of chemotherapeutic drugs , particularly cytarabine ( cytosine arabinoside , ara-c , cytosar ) , may develop chemotherapy-induced acral erythema , a painful toxic rash of the palmar surfaces of the hands that progresses to edema , blister formation , and desquamation .
C0010711
cytosine arabinoside
C0591320
cytosar