Immature teratomas can be graded from 0 to 3 based on the amount of immature tissue found in the tumor specimen.

We further tested 33 lung cancer patients' tumor specimens, and showed that most of the lung cancer tumor specimens expressed PDGFR-α.

BSD reviewed the patient's tumor specimens.

For valuable tumor specimen, reliability is paramount.

This approach includes histological examination of tumor specimens from individual patients (such as HER2/NEU in breast cancer) to look for markers associated with prognosis and likely treatment responses.

If submitting a fresh sample, the tumor 3x3mm sample from an unfixed tumor specimen within an hour of surgery.

In total, this patient had three tumor specimens available for analysis: the original lung tumor biopsy, a biopsy of the progressing lung lesion, and pleural fluid.

These adenomas represent the most common hormone-producing pituitary tumors and account for 25% to 41% of tumor specimens.

These adenomas represent the second or third most common hormone-producing pituitary tumors, depending on the series; in one series these adenomas accounted for 13% of tumor specimens.

In this system, Groups are defined by the extent of disease and by the extent of initial surgical resection after pathologic review of the tumor specimen(s).