A novel cause of localized longitudinal erythronychia: infantile haemangioma of the nail unit

Xiao, Han; Liang, Yuan; Ma, Lin

doi:10.1111/ced.14654

Cited by 2 publications

(2 citation statements)

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“…LLE can rarely be due to benign vascular proliferations, such as vascular tumors and vascular malformations (shown in Table 1) [5–14]. Congenital vascular proliferations include infantile hemangioma, the most common benign soft tissue tumor of infancy, but only 5 cases of the nail unit have been described [5–7]. Most are present as purple-red or red nail plate discoloration, with associated pseudo-clubbing.…”

Section: Discussionmentioning

confidence: 99%

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Nail Unit Arteriovenous Hemangioma Presenting as Longitudinal Erythronychia

Hwang¹,

Magro²,

Lipner³

2023

Skin Appendage Disord

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Introduction: Localized longitudinal erythronychia is defined as a single nail with a longitudinal red band extending the length of a nail plate. It has a broad differential of benign and malignant etiologies, and is rarely due to benign vascular proliferations. Case Presentation: We present a unique case of nail unit arteriovenous hemangioma presenting as longitudinal erythronychia of the left thumbnail in a 76-year-old male. The band was 6 mm and encompassed over 40% of the surface area of the nail plate. Dermoscopy showed red bands that were regular in terms of color, but not thickness or spacing. Due to concern for an amelanotic melanoma, a longitudinal excision was performed. Histopathology was consistent with a diagnosis of nail unit arteriovenous hemangioma. Conclusion: Arteriovenous hemangiomas were rarely present in the nail unit. They can be present as a blue or red nodule/macule, or as longitudinal erythronychia. Diagnosis often requires an excisional biopsy, with histopathology notable for a proliferation of multiple thick- and thin-walled vascular structures lined by a flattened endothelium. Our case emphasizes the need to consider vascular proliferations, such as arteriovenous hemangioma, in the differential diagnosis of longitudinal erythronychia.

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Section: Discussionmentioning

confidence: 99%

“…Most are present as purple-red or red nail plate discoloration, with associated pseudo-clubbing. One case is presented as a 1-mm LLE, with change in band width and color over the infant’s first 2 months of life [5] .…”

Section: Discussionmentioning

confidence: 99%