Spoke wheel like structures

From dermoscopedia

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 Editor: Ralph P. Braun

 Author(s): Ralph P. Braun, Katrin Kerl
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Description In this chapter we describe spoke wheel like structures and its histopathological correlation
Author(s) Ralph P. Braun · Katrin Kerl
Responsible author Ralph Braun→ send e-mail
Status unknown
Status update May 27, 2017
Status by Ralph P. Braun


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Spoke-wheel-like structures are well-circumscribed brown to gray-blue– brown radial projections that radiate out from a dark brown central hub. Sometimes the radial projections are not visible and instead one sees a concentric globule consisting of a round structure with a central darker hub, which is surrounded by a brown halo of pigment. In the absence of a pigment network, spoke-wheels are highly suggestive of basal cell carcinoma.

Histopathologically, they correspond to the nests of basal cell carcinoma emanating from the undersurface of the epidermis; a common finding in superficial basal cell carcinoma [1].

Spoke wheel schematic 27.jpg
BCC Pigmented Multiple Abdomen Derm 2.JPG



References

  1. Lallas et al.: Dermoscopy in the diagnosis and management of basal cell carcinoma. Future Oncol 2015;11:2975-84. PMID: 26450622. DOI.