Related Experiment Video
Updated: Aug 17, 2026
06:24
Minimal Erythema Dose (MED) Testing
Published on: May 28, 2013
Keratosis lichenoides chronica. Successful treatment with psoralen-ultraviolet-A therapy
Archives of Dermatology
|February 1, 1981
Abstract:
A man with keratosis lichenoides chronica is described who, unlike previously described patients, had had his eruption since infancy. Moreover, this patient had prominent oral involvement resembling lichen planus. Typically, keratosis lichenoides chronica is recalcitrant to all forms of treatment, but this patient responded substantially to psoralen-ultraviolet-A therapy. Several weeks after treatment was completed, he showed no signs of relapse.
Related Concept Videos
01:30Skin Cancer
Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
01:27Acne Infection
Acne is a multifactorial skin condition primarily affecting adolescents and young adults, with a global prevalence estimated to exceed 75% in this demographic. The condition is characterized by the formation of comedones (blackheads and whiteheads), papules, pustules, nodules, and, in severe cases, cysts, particularly in areas rich in sebaceous glands such as the face, neck, chest, and back. The pathogenesis involves increased sebum production, follicular hyperkeratinization, colonization by...