Preferential Localization of Fixed Drug Eruption Over a Cosmetic Red Lip Tattoo
Abstract
Fixed drug eruption (FDE) is a delayed hypersensitivity reaction characterized by recurrent lesions at the same site following re-exposure to an offending medication. Preferential localization over tattooed skin is rare and may mimic tattoo hypersensitivity. We report a 27-year-old woman with recurrent burning, swelling, oozing, and progressive hyperpigmentation predominantly affecting cosmetically tattooed ("lip blushing") lips. Symptoms began approximately one year after tattoo placement and recurred intermittently. The patient reported episodic use of trimethoprim-containing medications, ibuprofen, and ciprofloxacin preceding several flares. During the most recent episode, a solitary hyperpigmented buttock patch developed. Examination revealed violaceous-gray hyperpigmentation involving the tattooed lips and a well-demarcated buttock patch consistent with healed FDE. The clinical course favored FDE preferentially localized to an immunologically altered cutaneous district created by cosmetic tattooing rather than tattoo hypersensitivity. This case highlights cosmetic tattooing as a potential locus minoris resistentiae that may predispose to preferential FDE localization and delay diagnosis.
How strong is the evidence?
Evidence Hub reads this as a case report, done in people. Its evidence level is 5 of 5 (Very low · case / narrative / animal / in vitro / in silico). Case reports, narrative reviews, and animal, cell or computer-model studies give the weakest evidence for human health.
Read the paper
Related studies
- Horizontal gene transfer in the human gastrointestinal tract: potential spread of antibiotic resistance genes
- Mutation supply and relative fitness shape the genotypes of ciprofloxacin-resistant Escherichia coli
- Genomic Survey of E. coli From the Bladders of Women With and Without Lower Urinary Tract Symptoms
- Characterization of cefotaxime-resistant urinary Escherichia coli from primary care in South-West England 2017–18
- Fitness cost constrains the spectrum of marR mutations in ciprofloxacin-resistant Escherichia coli
- Emerging evidence-based innovative approaches to control catheter-associated urinary tract infection: a review
Go deeper in Evidence Hub
Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.