Improvement in appearance of keloids (hypertrophic scars), scleroderma, acne keloidalis nuchae,old burn scars, granuloma annulare, and related conditions with altered dermal matrix Subjects will be evaluated at weeks 1, 2, 4, and then at monthly intervals until the end of the study. [clinicaltrials_resource:072bbce5d24f297f30c92abfdda9277b]

A dose of up to 320 mJ/cm2 from a UVB irradiation device will be administered at maximum 5 times per week for 16 weeks.

Improvement in appearance of keloids (hypertrophic scars), scleroderma, acne keloidalis nuchae,old burn scars, granuloma annulare, and related conditions with altered dermal matrix Subjects will be evaluated at weeks 1, 2, 4, and then at monthly intervals until the end of the study. [clinicaltrials_resource:072bbce5d24f297f30c92abfdda9277b]

A dose of up to 320 mJ/cm2 from a UVB irradiation device will be administered at maximum 5 times per week for 16 weeks.