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November 1985

Quinidine-Induced Vasculitis

Author Affiliations

From the Departments of Medicine A (Drs Shalit, Flugelman, Harats, Galun, Ackerman, and Eliakim) and Pathology (Dr Kopolovic), Hadassah University Hospital, Jerusalem.

Arch Intern Med. 1985;145(11):2051-2052. doi:10.1001/archinte.1985.00360110125026

• Four patients developed nonthrombocytopenic purpura two to three weeks after initiation of quinidine therapy. The skin lesions disappeared and did not recur after cessation of quinidine therapy. Histologic examination revealed leukocytoclastic vasculitis with deposition of C3, IgA, and/or IgM in the small dermal vessels. Since quinidine purpura is usually associated with thrombocytopenia, the possibility of leukocytoclastic vasculitis as an additional cause of purpura is stressed.

(Arch Intern Med 1985;145:2051-2052)