The patient is having this tumour (a large Intraperitoneal mass) since 2010. The patient is symptom-free and has no complaints regarding this.It was diagnosed on routine examination. Till date, the tumour is the same size and has neither regressed nor grown.

All other parameters are normal. Can someone guide me on tumour marker tests for a patient with an intraperitoneal tumour in a male patient aged 40? Please advise.