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Dose-dependent, non-pigmenting fixed drug eruption with eczematous lesions induced by bosutinib: case report


Joohyung Youh
Yasuyuki Yamaguchi
Tsugumichi Kawamura
Daichi Hoshina

Abstract

Bosutinib, widely used as a primary treatment for chronic myeloid leukemia (CML), is known to frequently cause cutaneous drug eruptions. Fixed Drug Eruption (FDE) is common, typically presenting as recurrent lesions that heal with residual hyperpigmentation. Diagnosing FDE, especially Non-Pigmenting Fixed Drug Eruption (NPFDE), is often challenging. A correlation exists between the dosage of certain medications, such as levetiracetam, and the emergence of drug eruptions. This report details a unique case of dose-dependent NPFDE caused by bosutinib. In managing cutaneous drug eruptions, particularly when the causative drug is crucial for treatment, a strategy of tapering the dosage should be considered.


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eISSN: 1937-8688