Riehl melanosis
Riehl melanosis é uma forma de dermatite de contato que se inicia com prurido, eritema e pigmentação, que se espalha gradativamente e, após atingir certo grau, torna‑se estacionária. A exposição solar após o uso de alguns perfumes ou cremes pode ser a causa da doença.
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ReferencesRiehl melanosis é frequentemente conhecida como dermatite de contato pigmentada. Trata‑se de um tipo de doença de pele causada por alergias, geralmente desencadeada por fragrâncias e outras substâncias presentes em produtos cosméticos. Embora seja classificada como dermatite, a Riehl melanosis apresenta alterações na pigmentação da pele, com apenas pequenos sinais de irritação. É mais comum em pessoas com tons de pele mais escuros. Pesquisas recentes investigaram a eficácia do tratamento com laser mid‑fluence QSNY 1064 nm para a pigmentação profunda associada à Riehl melanosis. Outro estudo combinou diferentes terapias, incluindo low‑fluence 1064 nm Q‑switched Nd:YAG laser, creme de hidroquinona e ácido tranexâmico oral, resultando em melhora significativa para a maioria dos pacientes.
Riehl melanosis (RM), commonly called pigmented contact dermatitis, is considered an acquired form of allergic contact dermatitis, typically to fragrance and other ingredients of cosmetic products. Although it is considered as a dermatitis, it presents clinically with hyperpigmentation over the face and shows pigment incontinence with minimal eczematous changes on histology. The condition is more commonly seen in dark-skinned people, causing an important psychosocial impact. A recent study showing the higher effectiveness of mid-fluence QSNY 1064-nm laser in targetting the deep pigmentation of RM has also been conducted. Another study used a combination of therapies to include low-fluence, 1064-nm, Q-switched Nd: YAG laser, hydroquinone cream, and oral tranexamic acid, with the majority of patients experiencing significant improvement.
Riehl melanosis (RM), commonly called pigmented contact dermatitis, is considered an acquired form of allergic contact dermatitis, typically to fragrance and other ingredients of cosmetic products. Although it is considered as a dermatitis, it presents clinically with hyperpigmentation over the face and shows pigment incontinence with minimal eczematous changes on histology. The condition is more commonly seen in dark-skinned people, causing an important psychosocial impact. A recent study showing the higher effectiveness of mid-fluence QSNY 1064-nm laser in targetting the deep pigmentation of RM has also been conducted. Another study used a combination of therapies to include low-fluence, 1064-nm, Q-switched Nd: YAG laser, hydroquinone cream, and oral tranexamic acid, with the majority of patients experiencing significant improvement.
Riehl's melanosis é uma doença de pele causada pelo contato com certos alérgenos e pela exposição à luz solar. Essa condição provoca uma pigmentação marrom‑acinzentada, de início rápido e progressivo, que pode impactar os pacientes tanto mental quanto fisicamente. Embora a causa exata de Riehl's melanosis ainda seja desconhecida, estudos apontam uma forte associação com a exposição a alérgenos. No tratamento, têm sido utilizados medicamentos tradicionais e terapia a laser, frequentemente combinados com agentes clareadores tópicos. A terapia a laser, sobretudo com o Q‑switched Nd:YAG laser, tem apresentado resultados promissores no manejo de Riehl's melanosis. A combinação de diferentes abordagens terapêuticas tem gerado resultados positivos.
Riehl's melanosis (RM) is a contact photodermatitis, with fast progressive gray-brown skin pigmentation as the main manifestation, which can seriously affect the psychology and physiology of patients. Currently, although the etiological factors of Riehl's melanosis is still be unknown, the existing literature proves clearly the cause of it is related to the contacting with suspected allergens. For decades, there has been no standard method for the treatment of RM, but with both conventional drug therapy and laser therapy having been attempted. Topical application of bleaching agents is mainly used as an auxiliary treatment modality. The laser treatment modality remains a hot spot, among which Q-switched Nd:YAG laser is well received for RM. Positive outcomes have been achieved by the combined treatment modalities attempted in recent years also achieve positive outcomes.
Riehl's melanosis (RM) is a contact photodermatitis, with fast progressive gray-brown skin pigmentation as the main manifestation, which can seriously affect the psychology and physiology of patients. Currently, although the etiological factors of Riehl's melanosis is still be unknown, the existing literature proves clearly the cause of it is related to the contacting with suspected allergens. For decades, there has been no standard method for the treatment of RM, but with both conventional drug therapy and laser therapy having been attempted. Topical application of bleaching agents is mainly used as an auxiliary treatment modality. The laser treatment modality remains a hot spot, among which Q-switched Nd:YAG laser is well received for RM. Positive outcomes have been achieved by the combined treatment modalities attempted in recent years also achieve positive outcomes.
