To the Editor.—
Epidemic Kaposi's sarcoma (KS) is a neoplasm frequently seen in the acquired immunodeficiency syndrome (AIDS).1 Cutaneous lesions are pleomorphic, vary in color, and may be mistaken for bruises and nevi. It may remain localized, but usually undergoes rapid multicentric cutaneous and/or visceral spread, producing substantial morbidity. Although studies have shown the lack of efficacy of zidovudine alone for control of Kaposi's sarcoma,2 it is often used for antiretroviral action in conjunction with antineoplastic therapy, which may have hematologic toxic effects.3 We report a patient who developed thrombocytopenia while receiving zidovudine, which led to ecchymoses around his Kaposi's sarcoma lesions, simulating rapid intracutaneous spread of the neoplasm and clearing after withdrawal of the drug.
Report of a Case.—
A 32-year-old white homosexual human immunodeficiency virus (HIV)-positive man developed a biopsyproven KS lesion on his left upper arm in 1985. Subsequently, he developed Pneumocystis carinii pneumonia,
Barnett JH, Gilson I. Zidovudine-Related Thrombocytopenia Simulating Rapid Growth of Kaposi's Sarcoma. Arch Dermatol. 1991;127(7):1068–1069. doi:10.1001/archderm.1991.01680060144031
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