Footnotes

• Contributors GCHR (guarantor) participated in literature review, is the principal writer of the manuscript and responsible for obtaining the microscopic pictures of the case. LYP is the principal surgeon managing the patient, responsible for performing the patient's cardiac surgery, participated in literature review and provided relevant scans and gross pictures. SJW is the surgeon involved in the care of the patient and responsible for performing lobectomy. KKS is the primary oncologist managing the patient. KS is responsible for review of the histology slides and provided professional advice in the interpretation of the histology. AT is responsible for identifying the case and work-up of the pathology specimen, and also provides professional advice on the histology. TPH is responsible for the work-up and interpretation of the pathology specimen, and also provides professional opinion on the histological findings as well as discussion of the case. TPH is also the principal editor of the manuscript.

• Competing interests None.

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