A major challenge in pituitary tumor diagnosis is that benign and malignant (cancerous) tumors may look similar under a microscope. We categorize pituitary tumors or adenomas based on size and the ...

Pituitary carcinomas can be difficult to diagnose because, under a microscope, they appear the same as pituitary adenomas. Pituitary adenomas are a type of benign tumor of the pituitary gland.

However, they can cause the pituitary gland to over- or under-produce some hormones ... However, even when using a microscope to diagnose pituitary cancer, experts may find it hard to distinguish ...

MRI or CT scans can detect tumors in the pituitary gland. And blood and urine tests can determine hormone levels. Even under a microscope, it’s difficult to recognize the difference between a ...