Footnotes

• Contributors TA assumed the role of guarantor and came up with the idea of writing the article. She formed part of the caring firm and was also involved in the patient’s management. She helped in gaining the patient’s consent to submit the case report to the BMJ and helped in researching literature and composing the case report. MG formed part of the caring firm and was also involved in the patient’s management. She helped in gaining the patient’s consent to submit the case report to the BMJ and helped in researching literature and composing the case report. She also helped in obtaining and editing the CT scan slices used for the report. DF also formed part of the caring firm. He helped in gaining the patient’s consent to submit the case report to the BMJ and helped in researching literature and composing the case report. He also formatted the report according to the BMJ guidelines. DB reviewed the histological samples and gave the final diagnosis of granulosa cell tumour. He contributed to the write-up by researching papers regarding granulosa cell tumour histology and providing photos and descriptions of the slides. All the authors are affiliated with Mater Dei Hospital in Malta.

• 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.

• Case reports provide a valuable learning resource for the scientific community and can indicate areas of interest for future research. They should not be used in isolation to guide treatment choices or public health policy.

• Competing interests None declared.

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