Depends, best to get a consultation first.

Full scan, partial scan, organ scan, with or without in patient stay (charge per day), all cost differently.

Also blood test will be needed, extra cost.

I have a large Shepard mix, full checkup including cancer screening with 3 days stay = RM3600+ (Converted from SGD)

This is SG vet though, not sure if Malaysia cheaper or not.

Should be cheaper if partial scan but may not be thorough enough to detect some cancer/diseases.

How old is your dog? Older dogs around 8-10 years old may have cancer (depends on breed, some less likely), but they usually have more critical diseases at that age, like kidney and liver problems.

Conclusion, better get a vet consultation first, then ask for the price. They have to do a basic checkup first, before they can tell you what tests needed and price estimate.