Solitary angiokeratoma with Meyerson phenomenon

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Clinical presentation

A 42-year-old woman was referred to our department for possible melanoma on the left thigh. She presented with a 2-year history of a dark papule that progressively grew larger, and 3 weeks before presentation also with an associated red halo and pruritus. Physical examination revealed a symmetric erythematous halo around a central, ill-defined, firm, dark-blue to black papule, 5 mm in diameter (Fig 1, A).

Dermoscopic appearance

Central dark lacunae and whitish veil were seen surrounded by an inner yellow structureless halo, and peripheral erythema with few dotted vessels within (Fig 1, B).

Confocal microscopy appearance

Reflectance confocal microscopic features are detailed in Fig 2.

Histologic diagnosis

Clinical, dermoscopic, and confocal microscopic correlation suggested the diagnosis of solitary angiokeratoma with Meyerson phenomenon, which was supported after shave biopsy specimen and histopathological examination (Fig 3).

Key message

Rare Meyerson phenomenon is defined by a symmetric halo of erythema around central, mostly melanocytic tumors.1 Our case showed that its association with angiokeratoma can be clinically mistaken for melanoma.2 We report the dermoscopic and reflectance confocal

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References (2)

Cited by (4)

Publication of this article was supported by 3Gen Inc.

Funding sources: None.

Conflicts of interest: None declared.

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