Footnotes

• Contributors GG is the writer of the article, the creator of the final image and the one who collected the data of the clinical case. OL is the pathologist who analysed images of endomyocardial biopsy and made available the histological images. CR drafted and reviewed this paper as an expert in diseases of the myocardium and pericardium.

• Competing interests None.

• Patient consent Obtained.

• Ethics approval Was obtained by the authors Cardiology section board.

• Provenance and peer review Not commissioned; internally peer reviewed.