Journal Information
Vol. 112. Issue 10.
Pages 921 (November - December 2021)
Vol. 112. Issue 10.
Pages 921 (November - December 2021)
Images in Dermatology
Open Access
Acrodermatitis continua of Hallopeau and Koebner’s Phenomenon
Acrodermatitis continua de Hallopeau y el fenómeno de Koebner
C. Sousa
Corresponding author

Corresponding author.
, P. Varela, A. Baptista
Departamento de Dermatología, Centro Hospitalar Vila Nova de Gaia/Espinho, Portugal
Article information
Full Text
Download PDF
Figures (2)
Full Text

A 34-year-old male patient, previously healthy, was evaluated because of painful lesions on his fingers with 4 years of evolution. Physical examination revealed erythema, pustules, hyperkeratosis with yellowish scales on the tips of his fingers accompanied of onychodystrophy of the nail apparatus in all the areas involved. On the fourth finger of the left hand there was koebnerization, probably induced by the ring, with pustular and keratotic lesions sharply demarcated (Fig. 1). The hepatitis B and C serology, anti-HIV test, QuantiFERON tuberculosis test were negative and chest X-ray was normal. After 3 months of treatment with acitretin (1 mg/kg/day), a complete resolution of the acrodermatitis was observed (Fig. 2).

Figure 1
Figure 2

Acrodermatitis continua of Hallopeau, is a rare, chronic, recurrent disease with unknown etiology, that is considered a localized form of pustular psoriasis. The condition presents with erythema and tender pustules that rupture and coalesce in a lake of pus on the tip of a digit, more frequently arising on a finger than a toe.

Please cite this article as: Sousa C, Varela P, Baptista A. Acrodermatitis continua de Hallopeau y el fenómeno de Koebner. Actas Dermosifiliogr. 2021;112:921.

Actas Dermo-Sifiliográficas (English Edition)

Subscribe to our newsletter

Article options
es en

¿Es usted profesional sanitario apto para prescribir o dispensar medicamentos?

Are you a health professional able to prescribe or dispense drugs?