Skin colour is determined by four biochromes: oxyhaemoglobin (red), reduced haemoglobin (blue), carotenoids (yellow), and, most importantly, the amount and type of melanin produced and its distribution in the skin. Pigmentary disorders comprise hypopigmentary, hyperpigmentary, and non-melanin pigmentary diseases. While the former two are discussed frequently, non-melanin pigmentary conditions are not unusual. Based on the aetiology and colour of pigmentation, these disorders can be categorised into blue-coloured lesions, hypopigmented lesions due to vascular aetiology, yellow-coloured lesions (xanthoderma), green-coloured lesions, pigmentation caused by heavy metals, and the miscellaneous group comprising conditions like chromhidrosis and ochronosis. While a few of these conditions may be confined to the skin, others can give an important clue to an underlying systemic disease. This review attempts to summarise the conditions that present as non-melanin pigmentation. It is imperative to recognise these entities and provide appropriate treatment to the patient.
{"title":"Non-melanin pigmentation: A narrative review.","authors":"Pragya Ashok Nair, Pooja Arora, Chethana S Gurumurthy, Guneet Awal, Hima Gopinath, Shivani Bansal, Pooja Agarwal, Rita Vora, Priyadarshini Sahu, Gauri Dinesh Mahabal","doi":"10.25259/IJDVL_1732_2024","DOIUrl":"https://doi.org/10.25259/IJDVL_1732_2024","url":null,"abstract":"<p><p>Skin colour is determined by four biochromes: oxyhaemoglobin (red), reduced haemoglobin (blue), carotenoids (yellow), and, most importantly, the amount and type of melanin produced and its distribution in the skin. Pigmentary disorders comprise hypopigmentary, hyperpigmentary, and non-melanin pigmentary diseases. While the former two are discussed frequently, non-melanin pigmentary conditions are not unusual. Based on the aetiology and colour of pigmentation, these disorders can be categorised into blue-coloured lesions, hypopigmented lesions due to vascular aetiology, yellow-coloured lesions (xanthoderma), green-coloured lesions, pigmentation caused by heavy metals, and the miscellaneous group comprising conditions like chromhidrosis and ochronosis. While a few of these conditions may be confined to the skin, others can give an important clue to an underlying systemic disease. This review attempts to summarise the conditions that present as non-melanin pigmentation. It is imperative to recognise these entities and provide appropriate treatment to the patient.</p>","PeriodicalId":50376,"journal":{"name":"Indian Journal of Dermatology Venereology & Leprology","volume":" ","pages":"1-10"},"PeriodicalIF":3.4,"publicationDate":"2025-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145642128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The enduring legacy of the father-son duo - A tribute to the Civatte family and their contributions to dermatology.","authors":"Sushmitha Dharani Sankar","doi":"10.25259/IJDVL_334_2025","DOIUrl":"https://doi.org/10.25259/IJDVL_334_2025","url":null,"abstract":"","PeriodicalId":50376,"journal":{"name":"Indian Journal of Dermatology Venereology & Leprology","volume":" ","pages":"1-3"},"PeriodicalIF":3.4,"publicationDate":"2025-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145642124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-25DOI: 10.25259/IJDVL_1249_2025
Yoon Seob Kim
{"title":"Asymptomatic yellow papules on the neck and axillae in an elderly man.","authors":"Yoon Seob Kim","doi":"10.25259/IJDVL_1249_2025","DOIUrl":"https://doi.org/10.25259/IJDVL_1249_2025","url":null,"abstract":"","PeriodicalId":50376,"journal":{"name":"Indian Journal of Dermatology Venereology & Leprology","volume":" ","pages":"1-4"},"PeriodicalIF":3.4,"publicationDate":"2025-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145642384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-16DOI: 10.25259/IJDVL_1413_2025
Atreyo Chakraborty
{"title":"Elegy on the death of a pemphigus patient.","authors":"Atreyo Chakraborty","doi":"10.25259/IJDVL_1413_2025","DOIUrl":"https://doi.org/10.25259/IJDVL_1413_2025","url":null,"abstract":"","PeriodicalId":50376,"journal":{"name":"Indian Journal of Dermatology Venereology & Leprology","volume":" ","pages":"1"},"PeriodicalIF":3.4,"publicationDate":"2025-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146144601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
扫码关注我们
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号