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Updated: May 5, 2026
The Goeckerman Regimen for the Treatment of Moderate to Severe Psoriasis
Published on: July 11, 2013
Wolf's Isotopic Response: A Rare Case of Terra Firma-Forme Dermatosis on Resolved Psoriatic Plaques
Conor Larney1,2, Peter A Foley1,2,3, Senhong Lee2,4
1Department of Dermatology, St Vincent's Hospital Melbourne, Fitzroy, Victoria, Australia.
Abstract:
Terra firma-forme dermatosis is a benign condition characterised by asymptomatic hyperkeratotic, dark papules or plaques. The diagnosis may be confirmed by firmly rubbing the lesions with 70% isopropyl alcohol, resulting in resolution of the lesions. Wolf's isotopic response refers to the development of a new dermatosis in the same location that a previous, healed, unrelated skin condition occupied. We report the case of a patient developing Terra firma-forme dermatosis at the site of resolved psoriatic plaques.
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