Article Text
Image challenge
Man with difficulty breathing
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Footnotes
Contributors All authors contributed equally to the manuscript. GM wrote the case. KT wrote the explanation. WW edited the paper, obtained consent and images from the patient, and coordinated submission.
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.
Patient and public involvement Patients and/or the public were not involved in the design, or conduct, or reporting, or dissemination plans of this research.
Provenance and peer review Not commissioned; internally peer reviewed.