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Reactive perforating collagenosis: a condition that may be underdiagnosed
A C Satchell1, K Crotty, S Lee
1Department of Dermatology, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia.
The Australasian Journal of Dermatology
|March 21, 2002
Summary
Reactive perforating collagenosis, a skin disorder often linked to diabetes and kidney issues, presents with itchy rashes. Early diagnosis and varied treatments, including creams, UVB, and oral medication, are key for managing this condition.
Area of Science:
- Dermatology
- Internal Medicine
Background:
- Reactive perforating collagenosis (RPC) is a rare perforating dermatosis.
- It commonly affects adults with underlying conditions like diabetes mellitus and renal failure.
Observation:
- Three adult patients with long-standing diabetes, hypertension, hypercholesterolemia, and ischemic heart disease presented with generalized pruritus and papular eruptions.
- Diagnostic histological features of RPC were challenging to identify, often requiring multiple biopsies or deeper tissue examination.
Findings:
- Treatment responses varied significantly among the three patients.
- One patient improved with a phenol-glycerine cream.
- Another required narrow-band ultraviolet (UV) B therapy after initial topical treatments failed.
- The third patient necessitated oral acitretin after failing to respond to topical therapies, antihistamines, and UVB.
Implications:
- RPC should be considered in patients with diabetes or renal failure experiencing pruritus.
- Histopathological examination of intact lesions, potentially requiring multiple levels, is crucial for accurate RPC diagnosis.
- Prompt diagnosis and tailored treatment strategies are essential for managing RPC effectively.