Disclaimer. This site is a training resource for oncology data specialists and cancer registration trainees. It is not intended to provide medical advice or to guide clinical care, diagnosis, or treatment. NCI urges users to consult with a qualified physician for diagnosis and for answers to their personal medical questions.

Providing web-based training modules for cancer registration and surveillance

Pathology

Key Information

cell type; depth of invasion (mucosa, submucosa, muscular layer, perivesical fat, serosa and connective tissue); size of lesion; adjacent tissue involved (prostate, urethra, parametrium); involvement of regional lymph nodes; multifocal tumors

Cytology Reports

Go to the Pathology page of the Diagnostic Tests module for more information.

Suggested Citation

SEER Training Modules: Pathology. U.S. National Institutes of Health, National Cancer Institute. Cited 01 January 2026. Available from: https://training.seer.cancer.gov.

Pathology

Key Information

Cytology Reports

Suggested Citation

Glossary Term