Footnotes

• Handling editor Iskander Chaudhry.

• Contributors SAP saw all the slides and wrote the manuscript. SVK reviewed all cases where the possibility of fat was suspected at first evaluation in the biopsies.

• 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 consent for publication Not required.

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