Related Experiment Video
Updated: May 26, 2026

The Goeckerman Regimen for the Treatment of Moderate to Severe Psoriasis
Published on: July 11, 2013
[Extensive Dowling-Degos disease following long term PUVA therapy]
R Kort Khaddar1, W Koubaa Mahjoub, I Zaraa
1Service de dermatologie, EPS La Rabta, Jabbari, Tunis, Tunisie. rymkort@yahoo.fr
Background:
Dowling-Degos disease is a rare and benign inherited dermatosis.
Patients And Methods:
A 53-year-old woman presented with generalized histologically confirmed Dowling-Degos disease revealed 8 years after psoralen photochemotherapy (PUVA) for psoriasis. This presentation was special in terms of its considerable spread as well as the absence of comedone-like and punctate scars.
Discussion:
Dowling-Degos disease is a reticulate pigmentary disorder of the flexures associating prominent comedone-like lesions and pitted scars. Diagnosis is based on clinical and histopathological examination, which allows this entity to be differentiated from other reticulate pigmentary disorders. A literature review failed to provide any indication that PUVA therapy either aggravates or reveals Dowling-Degos disease, a finding which we feel merits mention.
Related Concept Videos
Pulmonary Tuberculosis I
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Chronic Bowel Disorders: Introduction
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
