Cholestatic Pruritus Mimicking a Cutaneous Drug Eruption.

Pruritus, colloquially known as itch, is a common clinical symptom seen in a variety of dermatological conditions and systemic disorders. Pruritus can broadly be classified into four categories: neuropathic, neurogenic/systemic, psychogenic, and pruritoceptive. Initial categorization depends on anatomical and pathophysiological aspects of presentation and is reflective of underlying etiology. We report a case of an 83-year-old man presenting with generalized pruritus secondary to cholestasis from bile duct malignancy. This case is notable for atypical presenting features, including a trunk eruption comprised of excoriated papules with onset following meloxicam initiation, mimicking a cutaneous adverse drug reaction. Providers should consider systemic etiologies of pruritus in patients presenting with cutaneous eruptions with atypical features. Accurate categorization of pruritus can facilitate treatment and/or additional investigation of systemic disease.

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The authors have declared that no competing interests exist.