Beth S Ruben1, Wesley Y Yu2, Fan Liu3, Sam V Truong4, Kevin C Wang5, Lindy P Fox6. 1. Department of Dermatology, University of California, San Francisco, San Francisco, California; Department of Pathology, University of California, San Francisco, San Francisco, California. 2. School of Medicine, University of California, San Francisco, San Francisco, California. 3. Division of Dermatology, University of Washington, Seattle, Washington. 4. Department of Dermatology, Long Beach Veterans Affairs Medical Center, Long Beach, California. 5. Department of Dermatology, Stanford University, Stanford, California. 6. Department of Dermatology, University of California, San Francisco, San Francisco, California. Electronic address: foxli@derm.ucsf.edu.
Abstract
BACKGROUND: Cytarabine-induced toxicity manifests as various cutaneous morphologies. A generalized papular purpuric eruption has not been well described. OBJECTIVES: We aimed to characterize a distinct cytarabine-related eruption. METHODS: We reviewed all cases of cytarabine-related toxicity with papular purpuric eruptions or violaceous erythema at the University of California, San Francisco between 2006 and 2011. RESULTS: Sixteen cases were identified. The eruption began as erythematous papules that evolved into coalescing purpuric papules and plaques. It had affinity for intertriginous areas, neck, ears, and scalp. Pruritus was common, but no systemic complications were documented. Thirteen patients (81.3%) developed the eruption after completion of chemotherapy. Differential diagnosis often included viral exanthem (62.5%), drug eruption (50%), and vasculitis (37.5%). Histopathology was nonspecific but commonly demonstrated sparse lymphocytic infiltrates, spongiosis, and/or red cell extravasation. Importantly, the eruption was neither predicted by past cytarabine exposure nor predictive of future recurrence. LIMITATIONS: This is a review of cases from a single institution. Observation was limited to acute hospitalization, however, charts were reviewed for subsequent reactions on rechallenge. CONCLUSIONS: The eruption described herein represents a specific skin-limited reaction to cytarabine. Awareness of its characteristic morphology, distribution, and timeline will aid in clinical diagnosis. Reassurance concerning its benign nature will prevent unnecessary intervention or cessation of chemotherapy.
BACKGROUND:Cytarabine-induced toxicity manifests as various cutaneous morphologies. A generalized papular purpuric eruption has not been well described. OBJECTIVES: We aimed to characterize a distinct cytarabine-related eruption. METHODS: We reviewed all cases of cytarabine-related toxicity with papular purpuric eruptions or violaceous erythema at the University of California, San Francisco between 2006 and 2011. RESULTS: Sixteen cases were identified. The eruption began as erythematous papules that evolved into coalescing purpuric papules and plaques. It had affinity for intertriginous areas, neck, ears, and scalp. Pruritus was common, but no systemic complications were documented. Thirteen patients (81.3%) developed the eruption after completion of chemotherapy. Differential diagnosis often included viral exanthem (62.5%), drug eruption (50%), and vasculitis (37.5%). Histopathology was nonspecific but commonly demonstrated sparse lymphocytic infiltrates, spongiosis, and/or red cell extravasation. Importantly, the eruption was neither predicted by past cytarabine exposure nor predictive of future recurrence. LIMITATIONS: This is a review of cases from a single institution. Observation was limited to acute hospitalization, however, charts were reviewed for subsequent reactions on rechallenge. CONCLUSIONS: The eruption described herein represents a specific skin-limited reaction to cytarabine. Awareness of its characteristic morphology, distribution, and timeline will aid in clinical diagnosis. Reassurance concerning its benign nature will prevent unnecessary intervention or cessation of chemotherapy.
Authors: Joseph R Stoll; Laura Battle; Andrea Moy; Stephen W Dusza; Jae H Park; Martin S Tallman; Justin Taylor; Alina Markova Journal: J Am Acad Dermatol Date: 2021-02-02 Impact factor: 15.487