How is progressive macular Hypomelanosis diagnosed?
Progressive macular hypomelanosis is usually diagnosed by clinical suspicion and supported by the presence of fluorescence on Wood light examination. The hair follicles fluoresce with a red glow, indicating they are colonised by P. acnes. Dermoscopy shows poorly-defined white macules with faint reticular pigmentation.
What is progressive macular Hypomelanosis?
Progressive macular hypomelanosis (PMH) is a common pigmentary disorder resulting in hypopigmentation of the skin. It has also been called cutis trunci variata, nummular and confluent hypomelanosis, Creole dyschromia, and idiopathic multiple large-macule hypomelanosis.
Is progressive macular Hypomelanosis common?
Progressive Macular Hypomelanosis (PMH) is a common but often misdiagnosed disorder of acquired hypopigmentation.
What does Hypomelanosis mean?
Hypomelanosis of Ito is a rare condition characterized by distinctive skin changes, in which areas of the body lack skin color (hypopigmentation). These skin changes may present as patches, streaks or spiral-shaped (whorled) areas.
How common is nevus Depigmentosus?
The term nevus depigmentosus, however, is a misnomer, because the lesion is hypopigmented but not depigmented. The reported prevalence of nevus depigmentosus varies from 0.4% to 3%.
What is ash leaf spots?
Ash-leaf spots are hypomelanotic lesions that are observed more easily with the use of a Wood lamp. Forehead plaque in a patient with tuberous sclerosis complex (TSC). The presence of either a forehead plaque or a facial angiofibroma constitutes one of the major diagnostic criteria for TSC.
Is Hypomelanosis curable?
IGH is a benign condition with an excellent prognosis; however, once present, lesions do not remit without treatment.
What causes progressive macular Hypomelanosis?
PMH should be differentiated from other disorders with hypopigmentation on the trunk such as pityriasis versicolor. We propose that Propionibacterium acnes bacteria living in hair follicles are the cause of PMH as a result of production of a hypothetical depigmenting factor.
Is nevus depigmentosus curable?
Most patients with nevus depigmentosus do not pursue treatment for their lesion. There is no way to repigment the skin. If, however, the lesion is of cosmetic concern, camouflage makeup is effective. If the lesion is small one could also consider excision.