{"title":"Superficial Papular Neuroma: Two Cases of a Distinctive Dermal Neoplasm.","authors":"Ronan Knittel, David Paton, Trevor W Beer","doi":"10.1097/DAD.0000000000002872","DOIUrl":null,"url":null,"abstract":"<p><strong>Abstract: </strong>Superficial papular neuroma is a rare cutaneous spindle cell lesion, with only 5 cases reported in 2 studies. We document 2 additional cases in a 45-year-old man and a 43-year-old woman (the first case identified in a woman). Clinically, superficial papular neuromas appear as a single, non-specific papule on the head, neck, or back. Histologically, these lesions are within the papillary and superficial reticular dermis, with nerve-like structures composed of bland spindle-shaped cells intersecting normal tissue with mild reactive acanthosis. The cells are SOX10 positive with neurofilament protein staining multiple axons within. The nerve-like structures in this study were occasionally surrounded by a thin rim of CD34 positivity, with no epithelial membrane antigen staining, similar to normal sensory neurons. Superficial papular neuroma are rare benign neoplasms with no reports of recurrence, even when incompletely excised.</p>","PeriodicalId":50967,"journal":{"name":"American Journal of Dermatopathology","volume":" ","pages":""},"PeriodicalIF":1.1000,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"American Journal of Dermatopathology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1097/DAD.0000000000002872","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"DERMATOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Abstract: Superficial papular neuroma is a rare cutaneous spindle cell lesion, with only 5 cases reported in 2 studies. We document 2 additional cases in a 45-year-old man and a 43-year-old woman (the first case identified in a woman). Clinically, superficial papular neuromas appear as a single, non-specific papule on the head, neck, or back. Histologically, these lesions are within the papillary and superficial reticular dermis, with nerve-like structures composed of bland spindle-shaped cells intersecting normal tissue with mild reactive acanthosis. The cells are SOX10 positive with neurofilament protein staining multiple axons within. The nerve-like structures in this study were occasionally surrounded by a thin rim of CD34 positivity, with no epithelial membrane antigen staining, similar to normal sensory neurons. Superficial papular neuroma are rare benign neoplasms with no reports of recurrence, even when incompletely excised.
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