Eruptive acral syringomas: A case report and review of literature

We present a case of a 43-year-old woman with Vogt–Koyanagi–Harada syndrome, on adalimumab, methotrexate, and risedronate, who developed pruritic, skin-colored papules on the dorsal hands. A biopsy revealed features consistent with syringomas. Syringomas are benign eccrine duct tumors that typically...

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Main Authors: María Gabriela Rodríguez Herrera, Stephen M. Smith, Cheryl F. Rosen
Format: Article
Language:English
Published: SAGE Publishing 2025-08-01
Series:SAGE Open Medical Case Reports
Online Access:https://doi.org/10.1177/2050313X251358992
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author María Gabriela Rodríguez Herrera
Stephen M. Smith
Cheryl F. Rosen
author_facet María Gabriela Rodríguez Herrera
Stephen M. Smith
Cheryl F. Rosen
author_sort María Gabriela Rodríguez Herrera
collection DOAJ
description We present a case of a 43-year-old woman with Vogt–Koyanagi–Harada syndrome, on adalimumab, methotrexate, and risedronate, who developed pruritic, skin-colored papules on the dorsal hands. A biopsy revealed features consistent with syringomas. Syringomas are benign eccrine duct tumors that typically appear as small, shiny papules, most often in the periorbital area but can also present in acral regions. Only 14 cases of exclusive acral syringomas have been reported. Eruptive variants may resemble conditions such as lichen nitidus or warts, making dermoscopy and histopathology crucial for diagnosis. Dermoscopically, syringomas may show fine reticulate brown lines and homogenous pigmentation. Histologically, they show small ductal structures and epithelial cords in the dermis. Their exact pathogenesis remains unclear, possibly involving hormonal or inflammatory triggers. Treatment is challenging due to their dermal depth and recurrence risk, with lasers and retinoids among the options. This case highlights the diagnostic complexity of acral eruptive syringomas.
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spelling doaj-art-d2609598b65a49448a770b1aabd9e5b52025-08-25T15:04:34ZengSAGE PublishingSAGE Open Medical Case Reports2050-313X2025-08-011310.1177/2050313X251358992Eruptive acral syringomas: A case report and review of literatureMaría Gabriela Rodríguez Herrera0Stephen M. Smith1Cheryl F. Rosen2Division of Dermatology, Toronto Western Hospital, University of Toronto, ON, CanadaDepartment of Laboratory Medicine and Pathobiology, University Health Network, University of Toronto, ON, CanadaDivision of Dermatology, Toronto Western Hospital, University of Toronto, ON, CanadaWe present a case of a 43-year-old woman with Vogt–Koyanagi–Harada syndrome, on adalimumab, methotrexate, and risedronate, who developed pruritic, skin-colored papules on the dorsal hands. A biopsy revealed features consistent with syringomas. Syringomas are benign eccrine duct tumors that typically appear as small, shiny papules, most often in the periorbital area but can also present in acral regions. Only 14 cases of exclusive acral syringomas have been reported. Eruptive variants may resemble conditions such as lichen nitidus or warts, making dermoscopy and histopathology crucial for diagnosis. Dermoscopically, syringomas may show fine reticulate brown lines and homogenous pigmentation. Histologically, they show small ductal structures and epithelial cords in the dermis. Their exact pathogenesis remains unclear, possibly involving hormonal or inflammatory triggers. Treatment is challenging due to their dermal depth and recurrence risk, with lasers and retinoids among the options. This case highlights the diagnostic complexity of acral eruptive syringomas.https://doi.org/10.1177/2050313X251358992
spellingShingle María Gabriela Rodríguez Herrera
Stephen M. Smith
Cheryl F. Rosen
Eruptive acral syringomas: A case report and review of literature
SAGE Open Medical Case Reports
title Eruptive acral syringomas: A case report and review of literature
title_full Eruptive acral syringomas: A case report and review of literature
title_fullStr Eruptive acral syringomas: A case report and review of literature
title_full_unstemmed Eruptive acral syringomas: A case report and review of literature
title_short Eruptive acral syringomas: A case report and review of literature
title_sort eruptive acral syringomas a case report and review of literature
url https://doi.org/10.1177/2050313X251358992
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AT cherylfrosen eruptiveacralsyringomasacasereportandreviewofliterature