Re: Can a CT scan always catch cancer?
In answer to your question, yes in my sister's experience a x-ray as well as a CAT scan did not catch her lung cancer, a PET scan did show the cancer and naturally then a biopsy was done to determine it. And yes, scars and old phneumonia can look like cancer. My son in laws father was told recently after a CAT scan that it appeared he has lung cancer. They did a biopsy and determined he does NOT have lung cancer. He does however have kidney cancer and they are going to remove that kidney next week. It pays to question, question everything to death.