{"title":"A histopathological hybrid cyst with overlapping features of steatocystoma multiplex and eruptive vellus hair cyst.","authors":"Keerthana Rachamadugu, Manasi Mukund Joshi, Bhushan Madke, Naga Nitya","doi":"10.1136/bcr-2025-267516","DOIUrl":null,"url":null,"abstract":"<p><p>Steatocystoma multiplex (SM) and eruptive vellus hair cysts (EVHC) are relatively rare, benign tumours of the pilosebaceous unit. SM and EVHC are distinct entities with comparable clinical characteristics but significant histological distinctions. We report a case of a young male patient in his 20s who presented with multiple, asymptomatic raised skin lesions over the front and back of the trunk. A provisional diagnosis of SM was made clinically, but histopathology revealed features of both SM and EVHC, confirming the dual nature of the lesions.</p>","PeriodicalId":9080,"journal":{"name":"BMJ Case Reports","volume":"18 9","pages":""},"PeriodicalIF":0.6000,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"BMJ Case Reports","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1136/bcr-2025-267516","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MEDICINE, GENERAL & INTERNAL","Score":null,"Total":0}
引用次数: 0
Abstract
Steatocystoma multiplex (SM) and eruptive vellus hair cysts (EVHC) are relatively rare, benign tumours of the pilosebaceous unit. SM and EVHC are distinct entities with comparable clinical characteristics but significant histological distinctions. We report a case of a young male patient in his 20s who presented with multiple, asymptomatic raised skin lesions over the front and back of the trunk. A provisional diagnosis of SM was made clinically, but histopathology revealed features of both SM and EVHC, confirming the dual nature of the lesions.
期刊介绍:
BMJ Case Reports is an important educational resource offering a high volume of cases in all disciplines so that healthcare professionals, researchers and others can easily find clinically important information on common and rare conditions. All articles are peer reviewed and copy edited before publication. BMJ Case Reports is not an edition or supplement of the BMJ.