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In conjunction with BMJ Case Reports, DTB will feature occasional drug-related cases that are likely to be of interest to readers. These will include cases that involve recently marketed drugs for which there is limited knowledge of adverse effects and cases that highlight unusual reactions to drugs that have been marketed for several years.
Summary
A woman in her 60s with a history of hypertension and stasis dermatitis presented to a primary care clinic with a bilateral, erythematous rash on the legs, stomach, and chest. Photosensitive rash and dermatitis may be caused by many conditions. Hydrochlorothiazide-induced dermatitis is a rare side effect of thiazide diuretics. Early identification of sulfa-sensitivity and photoallergic or phototoxic reaction is essential to accurate diagnosis and treatment of photosensitive dermatitis. Soliciting a targeted history is essential to delineating drug-induced dermatitis from stasis dermatitis. A thorough skin examination can elucidate the focal or extensive nature of the rash and is essential to making an accurate diagnosis. Immediate cessation of hydrochlorothiazide and switching drugs classes for hypertension management typically leads to resolution of symptoms.
Background
Thiazide diuretics, ACE inhibitors, angiotensin II receptor blockers, and calcium channel blockers are the three major classes of drugs used to treat primary hypertension.1 Hydrochlorothiazide-induced dermatitis is a rare side effect of thiazide diuretics that has a significant impact on patient morbidity and mortality. Soliciting a detailed history is essential to differentiating drug-induced dermatitis from stasis dermatitis or other causes of dermatitis.
Case presentation
A woman in her 60s with a history of hypertension and stasis dermatitis presented to her primary care clinic with a bilateral, erythematous …
Footnotes
Contributors RA drafted the article and followed the patient’s case. EGT took the pictures, edited the article and followed the patient’s case. JM followed the patient’s case, edited the article and approved the final version of this manuscript.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Case reports provide a valuable learning resource for the scientific community and can indicate areas of interest for future research. They should not be used in isolation to guide treatment choices or public health policy.
Competing interests None declared.
Provenance and peer review Not commissioned; externally peer reviewed.
First published Abdelwahab R, Tangalos EG, Matulis J. Differentiation of hydrochlorothiazide-induced dermatitis from stasis dermatitis. BMJ Case Rep 2022;15:e249884.