MedicalTerminology DB

Meaning of islet cell tumor: A mass of abnormal cells that forms in the endocrine (hormone-producing) tissues of the pancreas.

Definition of islet cell tumor

A mass of abnormal cells that forms in the endocrine (hormone-producing) tissues of the pancreas. Islet cell tumors may be benign (not cancer) or malignant (cancer).

Written and maintained by James Murray Last updated July 21, 2026 Educational reference, not medical advice. Read the limitations.

For learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.