Spoke wheel like structures

From dermoscopedia

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 Authored by: Ralph P. Braun     ·  Katrin Kerl

 Keywords:   spoke wheel like structures · bcc · basal cell carcinoma
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Description In this chapter we describe spoke wheel like structuresThis glossary term has not yet been described. and its histopathological correlation
Author(s) Ralph P. Braun · Katrin Kerl
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Status released
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 globuleThis glossary term has not yet been described. 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 networkGrid-like pattern consisting of interconnecting pigmented lines surrounding hypopigmented holes., spoke-wheels are highly suggestive of basal cell carcinomais the most common skin cancer, and one of the most common cancers in the United States.[1] While BCC has a very low metastatic risk, this tumor can cause significant disfigurement by invading surrounding tissues. Histopathologically, they correspond to the nests of basal cell carcinoma emanating from the undersurface of the epidermis; a common finding is superficialThis glossary term has not yet been described. basal cell carcinoma.

Spoke wheel schematic 27.jpg