ArticleOxford medical case reports2026
Lichenoid drug eruption induced by letrozole: a case report.
Article in Oxford medical case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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5 authors.
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Abstract
Lichenoid drug eruption (LDE) is an uncommon adverse reaction that can be clinically indistinguishable from idiopathic lichen planus (LP). We report a 63-year-old woman who developed a diffuse pruritic papular eruption with oral mucosal involvement two weeks after initiating letrozole for breast cancer. Histopathology revealed lichenoid interface dermatitis with scattered eosinophils extending into the deep subcutaneous tissue, supporting a drug-induced process. Due to the necessity of endocrine therapy, she was managed with high-potency topical corticosteroids and tacrolimus. Upon histologic confirmation, letrozole was replaced with exemestane, leading to a 90% improvement without recurrence. This case emphasizes the importance of clinicopathologic correlation and multidisciplinary coordination to maintain essential oncologic treatment while managing cutaneous toxicity.
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