Causes and features of erythroderma

Area of Science:

• Dermatology
• Oncology
• Internal Medicine

Background:

• Erythroderma is a severe, generalized inflammatory skin reaction with diverse underlying causes.
• Identifying these causes is crucial for effective patient management and prognosis.

Purpose of the Study:

• To characterize the clinical features of erythroderma.
• To identify the common and less common causes of erythroderma in the studied population.
• To investigate the association of erythroderma with malignancies, drug reactions, and dermatoses.

Main Methods:

• Retrospective review of 225 patients with erythroderma from January 2005 to June 2012.
• Analysis of clinical, laboratory, histological, and disease-specific investigations.
• Evaluation of causative factors including dermatoses, idiopathic causes, drug reactions, and malignancies.

Main Results:

• Underlying dermatoses (68.9%) and idiopathic causes (14.2%) were most common. Drug reactions (10.7%) and malignancies (4.0%) were also identified.
• Excluding dermatoses and drugs, malignancies accounted for 19.6% of cases, with a high proportion of solid-organ malignancies.
• Commonly implicated drugs included traditional medications (20.8%) and anti-tuberculous drugs (16.7%). Electrolyte abnormalities (26.2%) and renal impairment (16.9%) were frequently observed.

Conclusions:

• Malignancy is a significant cause of erythroderma, particularly when common triggers are absent.
• Traditional and anti-tuberculous medications are notable drug culprits in this population.
• Monitoring for renal impairment and electrolyte abnormalities is essential in erythroderma management.