Acneiform Eruption
A skin reaction characterised by papules and pustules resembling acne vulgaris but caused by a drug, chemical, or systemic condition rather than the typical acne pathophysiology.
Full Definition
An acneiform eruption is a cutaneous reaction pattern that mimics acne vulgaris in appearance, presenting with follicular papules and pustules across the face, trunk, or shoulders. Unlike true acne, it typically lacks comedones and often arises as an adverse effect of medications such as corticosteroids, epidermal growth factor receptor (EGFR) inhibitors, or halogens. The eruption usually has a more uniform morphology than acne. Editors must distinguish it from acne vulgaris in clinical documents, as the distinction carries treatment implications. It is commonly documented in adverse drug reaction reports and dermatology discharge summaries.
Usage
Usage note: Always specify the causative agent when known; 'acneiform eruption secondary to [drug]' is the preferred editorial construction in clinical reports.
In Context
- "The oncology team documented an acneiform eruption on the patient's face following initiation of cetuximab therapy." — Oncology-dermatology liaison report
- "The discharge summary clearly differentiated the acneiform eruption from pre-existing acne vulgaris." — Inpatient dermatology discharge summary