Article Text
Image challenge
Unexpected cutaneous alterations in a patient with lower back pain
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Footnotes
Contributors All authors contributed to the conception of the paper and the interpretation of the data. The clinical picture was taken by MM.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Provenance and peer review Not commissioned; internally peer reviewed.